Merge tag 'usb-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt / PHY driver updates from Greg KH:
"Here is the big set of USB, Thunderbolt, and PHY driver updates for
6.6-rc1. Included in here are:

- PHY driver additions and cleanups

- Thunderbolt minor additions and fixes

- USB MIDI 2 gadget support added

- dwc3 driver updates and additions

- Removal of some old USB wireless code that was missed when that
codebase was originally removed a few years ago, cleaning up some
core USB code paths

- USB core potential use-after-free fixes that syzbot from different
people/groups keeps tripping over

- typec updates and additions

- gadget fixes and cleanups

- loads of smaller USB core and driver cleanups all over the place

Full details are in the shortlog. All of these have been in linux-next
for a while with no reported problems"

* tag 'usb-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (154 commits)
platform/chrome: cros_ec_typec: Configure Retimer cable type
tcpm: Avoid soft reset when partner does not support get_status
usb: typec: tcpm: reset counter when enter into unattached state after try role
usb: typec: tcpm: set initial svdm version based on pd revision
USB: serial: option: add FOXCONN T99W368/T99W373 product
USB: serial: option: add Quectel EM05G variant (0x030e)
usb: dwc2: add pci_device_id driver_data parse support
usb: gadget: remove max support speed info in bind operation
usb: gadget: composite: cleanup function config_ep_by_speed_and_alt()
usb: gadget: config: remove max speed check in usb_assign_descriptors()
usb: gadget: unconditionally allocate hs/ss descriptor in bind operation
usb: gadget: f_uvc: change endpoint allocation in uvc_function_bind()
usb: gadget: add a inline function gether_bitrate()
usb: gadget: use working speed to calcaulate network bitrate and qlen
dt-bindings: usb: samsung,exynos-dwc3: Add Exynos850 support
usb: dwc3: exynos: Add support for Exynos850 variant
usb: gadget: udc-xilinx: fix incorrect type in assignment warning
usb: gadget: udc-xilinx: fix cast from restricted __le16 warning
usb: gadget: udc-xilinx: fix restricted __le16 degrades to integer warning
USB: dwc2: hande irq on dead controller correctly
...

CREDITS

···
 S: Taiwan 251
 S: Republic of China
 
-N: Reinette Chatre
-E: [e-mail]
-D: WiMedia Link Protocol implementation
-D: UWB stack bits and pieces
-
 N: Michael Elizabeth Chastain
 E: [e-mail]
 D: Configure, Menuconfig, xconfig
···
 S: Demonstratsii 8-382
 S: Tula 300000
 S: Russia
-
-N: Inaky Perez-Gonzalez
-E: [e-mail]
-D: UWB stack, HWA-RC driver and HWA-HC drivers
-D: Wireless USB additions to the USB stack
-D: WiMedia Link Protocol bits and pieces
 
 N: Gordon Peters
 E: [e-mail]

Documentation/ABI/testing/configfs-usb-gadget-midi2

···
+What:		/config/usb-gadget/gadget/functions/midi2.name
+Date:		Jul 2023
+KernelVersion:	6.6
+Description:
+		The attributes:
+
+		============	===============================================
+		process_ump	Flag to process UMP Stream messages (0 or 1)
+		static_block	Flag for static blocks (0 or 1)
+		iface_name	MIDI interface name string
+		============	===============================================
+
+What:		/config/usb-gadget/gadget/functions/midi2.name/ep.number
+Date:		Jul 2023
+KernelVersion:	6.6
+Description:
+		This group contains a UMP Endpoint configuration.
+		A new Endpoint starts from 0, and can be up to 3.
+
+		The attributes:
+
+		=============	===============================================
+		protocol_caps	MIDI protocol capabilities (1, 2 or 3 for both)
+		protocol	Default MIDI protocol (1 or 2)
+		ep_name		UMP Endpoint name string
+		product_id	Product ID string
+		manufacturer	Manufacture ID (24 bit)
+		family		Device family ID (16 bit)
+		model		Device model ID (16 bit)
+		sw_revision	Software Revision (32 bit)
+		=============	===============================================
+
+What:		/config/usb-gadget/gadget/functions/midi2.name/ep.number/block.number
+Date:		Jul 2023
+KernelVersion:	6.6
+Description:
+		This group contains a UMP Function Block configuration.
+		A new block starts from 0, and can be up to 31.
+
+		The attributes:
+
+		=================	==============================================
+		name			Function Block name string
+		direction		1: input, 2: output, 3: bidirectional
+		first_group		The first UMP Group number (0-15)
+		num_groups		The number of groups in this FB (1-16)
+		midi1_first_group	The first UMP Group number for MIDI 1.0 (0-15)
+		midi1_num_groups	The number of groups for MIDI 1.0 (0-16)
+		ui_hint			0: unknown, 1: receiver, 2: sender, 3: both
+		midi_ci_verison		Supported MIDI-CI version number (8 bit)
+		is_midi1		Legacy MIDI 1.0 device (0, 1 or 2)
+		sysex8_streams		Max number of SysEx8 streams (8 bit)
+		active			Active FB flag (0 or 1)
+		=================	==============================================

Documentation/ABI/testing/sysfs-bus-thunderbolt

···
 What:		/sys/bus/thunderbolt/devices/.../domainX/boot_acl
 Date:		Jun 2018
 KernelVersion:	4.17
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	Holds a comma separated list of device unique_ids that
 		are allowed to be connected automatically during system
 		startup (e.g boot devices). The list always contains
···
 What:		/sys/bus/thunderbolt/devices/.../domainX/iommu_dma_protection
 Date:		Mar 2019
 KernelVersion:	4.21
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	This attribute tells whether the system uses IOMMU
 		for DMA protection. Value of 1 means IOMMU is used 0 means
 		it is not (DMA protection is solely based on Thunderbolt
···
 What:		/sys/bus/thunderbolt/devices/.../domainX/security
 Date:		Sep 2017
 KernelVersion:	4.13
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	This attribute holds current Thunderbolt security level
 		set by the system BIOS. Possible values are:
 
···
 What:		/sys/bus/thunderbolt/devices/.../authorized
 Date:		Sep 2017
 KernelVersion:	4.13
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	This attribute is used to authorize Thunderbolt devices
 		after they have been connected. If the device is not
 		authorized, no PCIe devices are available to the system.
···
 What:		/sys/bus/thunderbolt/devices/.../boot
 Date:		Jun 2018
 KernelVersion:	4.17
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	This attribute contains 1 if Thunderbolt device was already
 		authorized on boot and 0 otherwise.
 
···
 What:		/sys/bus/thunderbolt/devices/.../key
 Date:		Sep 2017
 KernelVersion:	4.13
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	When a devices supports Thunderbolt secure connect it will
 		have this attribute. Writing 32 byte hex string changes
 		authorization to use the secure connection method instead.
···
 What:		/sys/bus/thunderbolt/devices/.../device
 Date:		Sep 2017
 KernelVersion:	4.13
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	This attribute contains id of this device extracted from
 		the device DROM.
 
 What:		/sys/bus/thunderbolt/devices/.../device_name
 Date:		Sep 2017
 KernelVersion:	4.13
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	This attribute contains name of this device extracted from
 		the device DROM.
 
···
 What:		/sys/bus/thunderbolt/devices/.../vendor
 Date:		Sep 2017
 KernelVersion:	4.13
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	This attribute contains vendor id of this device extracted
 		from the device DROM.
 
 What:		/sys/bus/thunderbolt/devices/.../vendor_name
 Date:		Sep 2017
 KernelVersion:	4.13
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	This attribute contains vendor name of this device extracted
 		from the device DROM.
 
 What:		/sys/bus/thunderbolt/devices/.../unique_id
 Date:		Sep 2017
 KernelVersion:	4.13
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	This attribute contains unique_id string of this device.
 		This is either read from hardware registers (UUID on
 		newer hardware) or based on UID from the device DROM.
···
 What:		/sys/bus/thunderbolt/devices/.../nvm_version
 Date:		Sep 2017
 KernelVersion:	4.13
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	If the device has upgradeable firmware the version
 		number is available here. Format: %x.%x, major.minor.
 		If the device is in safe mode reading the file returns
···
 What:		/sys/bus/thunderbolt/devices/.../nvm_authenticate
 Date:		Sep 2017
 KernelVersion:	4.13
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	When new NVM image is written to the non-active NVM
 		area (through non_activeX NVMem device), the
 		authentication procedure is started by writing to
···
 What:		/sys/bus/thunderbolt/devices/<xdomain>.<service>/key
 Date:		Jan 2018
 KernelVersion:	4.15
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	This contains name of the property directory the XDomain
 		service exposes. This entry describes the protocol in
 		question. Following directories are already reserved by
···
 What:		/sys/bus/thunderbolt/devices/<xdomain>.<service>/modalias
 Date:		Jan 2018
 KernelVersion:	4.15
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	Stores the same MODALIAS value emitted by uevent for
 		the XDomain service. Format: tbtsvc:kSpNvNrN
 
 What:		/sys/bus/thunderbolt/devices/<xdomain>.<service>/prtcid
 Date:		Jan 2018
 KernelVersion:	4.15
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	This contains XDomain protocol identifier the XDomain
 		service supports.
 
 What:		/sys/bus/thunderbolt/devices/<xdomain>.<service>/prtcvers
 Date:		Jan 2018
 KernelVersion:	4.15
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	This contains XDomain protocol version the XDomain
 		service supports.
 
 What:		/sys/bus/thunderbolt/devices/<xdomain>.<service>/prtcrevs
 Date:		Jan 2018
 KernelVersion:	4.15
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	This contains XDomain software version the XDomain
 		service supports.
 
 What:		/sys/bus/thunderbolt/devices/<xdomain>.<service>/prtcstns
 Date:		Jan 2018
 KernelVersion:	4.15
-Contact:	[e-mail]
+Contact:	Mika Westerberg <[e-mail]>
 Description:	This contains XDomain service specific settings as
 		bitmask. Format: %x
 

Documentation/ABI/testing/sysfs-bus-umc

···
-What:           /sys/bus/umc/
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        David Vrabel <[e-mail]>
-Description:
-                The Wireless Host Controller Interface (WHCI)
-                specification describes a PCI-based device with
-                multiple capabilities; the UWB Multi-interface
-                Controller (UMC).
-
-                The umc bus presents each of the individual
-                capabilities as a device.
-
-What:           /sys/bus/umc/devices/.../capability_id
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        David Vrabel <[e-mail]>
-Description:
-                The ID of this capability, with 0 being the radio
-                controller capability.
-
-What:           /sys/bus/umc/devices/.../version
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        David Vrabel <[e-mail]>
-Description:
-                The specification version this capability's hardware
-                interface complies with.

Documentation/ABI/testing/sysfs-bus-usb

···
 		drivers, non-authorized one are not.  By default, wired
 		USB devices are authorized.
 
-		Certified Wireless USB devices are not authorized
-		initially and should be (by writing 1) after the
-		device has been authenticated.
-
-What:		/sys/bus/usb/device/.../wusb_cdid
-Date:		July 2008
-KernelVersion:	2.6.27
-Contact:	David Vrabel <[e-mail]>
-Description:
-		For Certified Wireless USB devices only.
-
-		A devices's CDID, as 16 space-separated hex octets.
-
-What:		/sys/bus/usb/device/.../wusb_ck
-Date:		July 2008
-KernelVersion:	2.6.27
-Contact:	David Vrabel <[e-mail]>
-Description:
-		For Certified Wireless USB devices only.
-
-		Write the device's connection key (CK) to start the
-		authentication of the device.  The CK is 16
-		space-separated hex octets.
-
-What:		/sys/bus/usb/device/.../wusb_disconnect
-Date:		July 2008
-KernelVersion:	2.6.27
-Contact:	David Vrabel <[e-mail]>
-Description:
-		For Certified Wireless USB devices only.
-
-		Write a 1 to force the device to disconnect
-		(equivalent to unplugging a wired USB device).
-
 What:		/sys/bus/usb/drivers/.../new_id
 Date:		October 2011
 Contact:	[e-mail]

Documentation/ABI/testing/sysfs-class-uwb_rc

···
-What:           /sys/class/uwb_rc
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        [e-mail]
-Description:
-                Interfaces for WiMedia Ultra Wideband Common Radio
-                Platform (UWB) radio controllers.
-
-                Familiarity with the ECMA-368 'High Rate Ultra
-                Wideband MAC and PHY Specification' is assumed.
-
-What:           /sys/class/uwb_rc/beacon_timeout_ms
-Date:           July 2008
-KernelVersion:  2.6.27
-Description:
-                If no beacons are received from a device for at least
-                this time, the device will be considered to have gone
-                and it will be removed.  The default is 3 superframes
-                (~197 ms) as required by the specification.
-
-What:           /sys/class/uwb_rc/uwb<N>/
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        [e-mail]
-Description:
-                An individual UWB radio controller.
-
-What:           /sys/class/uwb_rc/uwb<N>/beacon
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        [e-mail]
-Description:
-                Write:
-
-                <channel>
-
-                to force a specific channel to be used when beaconing,
-                or, if <channel> is -1, to prohibit beaconing.  If
-                <channel> is 0, then the default channel selection
-                algorithm will be used.  Valid channels depends on the
-                radio controller's supported band groups.
-
-                Reading returns the currently active channel, or -1 if
-                the radio controller is not beaconing.
-
-What:           /sys/class/uwb_rc/uwb<N>/ASIE
-Date:           August 2014
-KernelVersion:  3.18
-Contact:        [e-mail]
-Description:
-
-                The application-specific information element (ASIE)
-                included in this device's beacon, in space separated
-                hex octets.
-
-                Reading returns the current ASIE.  Writing replaces
-                the current ASIE with the one written.
-
-What:           /sys/class/uwb_rc/uwb<N>/scan
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        [e-mail]
-Description:
-                Write:
-
-                <channel> <type> [<bpst offset>]
-
-                to start (or stop) scanning on a channel.  <type> is one of:
-
-		   ==   =======================================
-                    0   scan
-                    1   scan outside BP
-                    2   scan while inactive
-                    3   scanning disabled
-                    4   scan (with start time of <bpst offset>)
-		   ==   =======================================
-
-What:           /sys/class/uwb_rc/uwb<N>/mac_address
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        [e-mail]
-Description:
-                The EUI-48, in colon-separated hex octets, for this
-                radio controller.  A write will change the radio
-                controller's EUI-48 but only do so while the device is
-                not beaconing or scanning.
-
-What:           /sys/class/uwb_rc/uwb<N>/wusbhc
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        [e-mail]
-Description:
-                A symlink to the device (if any) of the WUSB Host
-                Controller PAL using this radio controller.
-
-What:           /sys/class/uwb_rc/uwb<N>/<EUI-48>/
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        [e-mail]
-Description:
-                A neighbour UWB device that has either been detected
-                as part of a scan or is a member of the radio
-                controllers beacon group.
-
-What:           /sys/class/uwb_rc/uwb<N>/<EUI-48>/BPST
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        [e-mail]
-Description:
-                The time (using the radio controllers internal 1 ms
-                interval superframe timer) of the last beacon from
-                this device was received.
-
-What:           /sys/class/uwb_rc/uwb<N>/<EUI-48>/DevAddr
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        [e-mail]
-Description:
-                The current DevAddr of this device in colon separated
-                hex octets.
-
-What:           /sys/class/uwb_rc/uwb<N>/<EUI-48>/EUI_48
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        [e-mail]
-Description:
-
-                The EUI-48 of this device in colon separated hex
-                octets.
-
-What:           /sys/class/uwb_rc/uwb<N>/<EUI-48>/IEs
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        [e-mail]
-Description:
-                The latest IEs included in this device's beacon, in
-                space separated hex octets with one IE per line.
-
-What:           /sys/class/uwb_rc/uwb<N>/<EUI-48>/LQE
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        [e-mail]
-Description:
-                Link Quality Estimate - the Signal to Noise Ratio
-                (SNR) of all packets received from this device in dB.
-                This gives an estimate on a suitable PHY rate. Refer
-                to [ECMA-368] section 13.3 for more details.
-
-What:           /sys/class/uwb_rc/uwb<N>/<EUI-48>/RSSI
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        [e-mail]
-Description:
-                Received Signal Strength Indication - the strength of
-                the received signal in dB.  LQE is a more useful
-                measure of the radio link quality.

Documentation/ABI/testing/sysfs-class-uwb_rc-wusbhc

···
-What:           /sys/class/uwb_rc/uwb<N>/wusbhc/wusb_chid
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        David Vrabel <[e-mail]>
-Description:
-                Write the CHID (16 space-separated hex octets) for this host controller.
-                This starts the host controller, allowing it to accept connection from
-                WUSB devices.
-
-                Set an all zero CHID to stop the host controller.
-
-What:           /sys/class/uwb_rc/uwb<N>/wusbhc/wusb_trust_timeout
-Date:           July 2008
-KernelVersion:  2.6.27
-Contact:        David Vrabel <[e-mail]>
-Description:
-                Devices that haven't sent a WUSB packet to the host
-                within 'wusb_trust_timeout' ms are considered to have
-                disconnected and are removed.  The default value of
-                4000 ms is the value required by the WUSB
-                specification.
-
-                Since this relates to security (specifically, the
-                lifetime of PTKs and GTKs) it should not be changed
-                from the default.
-
-What:           /sys/class/uwb_rc/uwb<N>/wusbhc/wusb_phy_rate
-Date:           August 2009
-KernelVersion:  2.6.32
-Contact:        David Vrabel <[e-mail]>
-Description:
-                The maximum PHY rate to use for all connected devices.
-                This is only of limited use for testing and
-                development as the hardware's automatic rate
-                adaptation is better then this simple control.
-
-                Refer to [ECMA-368] section 10.3.1.1 for the value to
-                use.
-
-What:           /sys/class/uwb_rc/uwb<N>/wusbhc/wusb_dnts
-Date:           June 2013
-KernelVersion:  3.11
-Contact:        Thomas Pugliese <[e-mail]>
-Description:
-                The device notification time slot (DNTS) count and interval in
-                milliseconds that the WUSB host should use.  This controls how
-                often the devices will have the opportunity to send
-                notifications to the host.
-
-What:           /sys/class/uwb_rc/uwb<N>/wusbhc/wusb_retry_count
-Date:           June 2013
-KernelVersion:  3.11
-Contact:        Thomas Pugliese <[e-mail]>
-Description:
-                The number of retries that the WUSB host should attempt
-                before reporting an error for a bus transaction.  The range of
-                valid values is [0..15], where 0 indicates infinite retries.

Documentation/ABI/testing/sysfs-wusb_cbaf

···
-What:           /sys/bus/usb/drivers/wusb_cbaf/.../wusb_*
-Date:           August 2008
-KernelVersion:  2.6.27
-Contact:        David Vrabel <[e-mail]>
-Description:
-                Various files for managing Cable Based Association of
-                (wireless) USB devices.
-
-                The sequence of operations should be:
-
-                1. Device is plugged in.
-
-                2. The connection manager (CM) sees a device with CBA capability.
-                   (the wusb_chid etc. files in /sys/devices/blah/OURDEVICE).
-
-                3. The CM writes the host name, supported band groups,
-                   and the CHID (host ID) into the wusb_host_name,
-                   wusb_host_band_groups and wusb_chid files. These
-                   get sent to the device and the CDID (if any) for
-                   this host is requested.
-
-                4. The CM can verify that the device's supported band
-                   groups (wusb_device_band_groups) are compatible
-                   with the host.
-
-                5. The CM reads the wusb_cdid file.
-
-                6. The CM looks it up its database.
-
-                   - If it has a matching CHID,CDID entry, the device
-                     has been authorized before and nothing further
-                     needs to be done.
-
-                   - If the CDID is zero (or the CM doesn't find a
-                     matching CDID in its database), the device is
-                     assumed to be not known.  The CM may associate
-                     the host with device by: writing a randomly
-                     generated CDID to wusb_cdid and then a random CK
-                     to wusb_ck (this uploads the new CC to the
-                     device).
-
-                     CMD may choose to prompt the user before
-                     associating with a new device.
-
-                7. Device is unplugged.
-
-                References:
-                  [WUSB-AM]
-			    Association Models Supplement to the
-                            Certified Wireless Universal Serial Bus
-                            Specification, version 1.0.
-
-What:           /sys/bus/usb/drivers/wusb_cbaf/.../wusb_chid
-Date:           August 2008
-KernelVersion:  2.6.27
-Contact:        David Vrabel <[e-mail]>
-Description:
-                The CHID of the host formatted as 16 space-separated
-                hex octets.
-
-                Writes fetches device's supported band groups and the
-                the CDID for any existing association with this host.
-
-What:           /sys/bus/usb/drivers/wusb_cbaf/.../wusb_host_name
-Date:           August 2008
-KernelVersion:  2.6.27
-Contact:        David Vrabel <[e-mail]>
-Description:
-                A friendly name for the host as a UTF-8 encoded string.
-
-What:           /sys/bus/usb/drivers/wusb_cbaf/.../wusb_host_band_groups
-Date:           August 2008
-KernelVersion:  2.6.27
-Contact:        David Vrabel <[e-mail]>
-Description:
-                The band groups supported by the host, in the format
-                defined in [WUSB-AM].
-
-What:           /sys/bus/usb/drivers/wusb_cbaf/.../wusb_device_band_groups
-Date:           August 2008
-KernelVersion:  2.6.27
-Contact:        David Vrabel <[e-mail]>
-Description:
-                The band groups supported by the device, in the format
-                defined in [WUSB-AM].
-
-What:           /sys/bus/usb/drivers/wusb_cbaf/.../wusb_cdid
-Date:           August 2008
-KernelVersion:  2.6.27
-Contact:        David Vrabel <[e-mail]>
-Description:
-                The device's CDID formatted as 16 space-separated hex
-                octets.
-
-What:           /sys/bus/usb/drivers/wusb_cbaf/.../wusb_ck
-Date:           August 2008
-KernelVersion:  2.6.27
-Contact:        David Vrabel <[e-mail]>
-Description:
-                Write 16 space-separated random, hex octets to
-                associate with the device.

Documentation/admin-guide/kernel-parameters.txt

···
 
 	usbcore.authorized_default=
 			[USB] Default USB device authorization:
-			(default -1 = authorized except for wireless USB,
+			(default -1 = authorized (same as 1),
 			0 = not authorized, 1 = authorized, 2 = authorized
 			if device connected to internal port)
 

Documentation/devicetree/bindings/phy/realtek,usb2phy.yaml

···
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2023 Realtek Semiconductor Corporation
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/realtek,usb2phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Realtek DHC SoCs USB 2.0 PHY
+
+maintainers:
+  - Stanley Chang <[e-mail]>
+
+description: |
+  Realtek USB 2.0 PHY support the digital home center (DHC) RTD series SoCs.
+  The USB 2.0 PHY driver is designed to support the XHCI controller. The SoCs
+  support multiple XHCI controllers. One PHY device node maps to one XHCI
+  controller.
+
+  RTD1295/RTD1619 SoCs USB
+  The USB architecture includes three XHCI controllers.
+  Each XHCI maps to one USB 2.0 PHY and map one USB 3.0 PHY on some
+  controllers.
+  XHCI controller#0 -- usb2phy -- phy#0
+                    |- usb3phy -- phy#0
+  XHCI controller#1 -- usb2phy -- phy#0
+  XHCI controller#2 -- usb2phy -- phy#0
+                    |- usb3phy -- phy#0
+
+  RTD1395 SoCs USB
+  The USB architecture includes two XHCI controllers.
+  The controller#0 has one USB 2.0 PHY. The controller#1 includes two USB 2.0
+  PHY.
+  XHCI controller#0 -- usb2phy -- phy#0
+  XHCI controller#1 -- usb2phy -- phy#0
+                               |- phy#1
+
+  RTD1319/RTD1619b SoCs USB
+  The USB architecture includes three XHCI controllers.
+  Each XHCI maps to one USB 2.0 PHY and map one USB 3.0 PHY on controllers#2.
+  XHCI controller#0 -- usb2phy -- phy#0
+  XHCI controller#1 -- usb2phy -- phy#0
+  XHCI controller#2 -- usb2phy -- phy#0
+                    |- usb3phy -- phy#0
+
+  RTD1319d SoCs USB
+  The USB architecture includes three XHCI controllers.
+  Each xhci maps to one USB 2.0 PHY and map one USB 3.0 PHY on controllers#0.
+  XHCI controller#0 -- usb2phy -- phy#0
+                    |- usb3phy -- phy#0
+  XHCI controller#1 -- usb2phy -- phy#0
+  XHCI controller#2 -- usb2phy -- phy#0
+
+  RTD1312c/RTD1315e SoCs USB
+  The USB architecture includes three XHCI controllers.
+  Each XHCI maps to one USB 2.0 PHY.
+  XHCI controller#0 -- usb2phy -- phy#0
+  XHCI controller#1 -- usb2phy -- phy#0
+  XHCI controller#2 -- usb2phy -- phy#0
+
+properties:
+  compatible:
+    enum:
+      - realtek,rtd1295-usb2phy
+      - realtek,rtd1312c-usb2phy
+      - realtek,rtd1315e-usb2phy
+      - realtek,rtd1319-usb2phy
+      - realtek,rtd1319d-usb2phy
+      - realtek,rtd1395-usb2phy
+      - realtek,rtd1395-usb2phy-2port
+      - realtek,rtd1619-usb2phy
+      - realtek,rtd1619b-usb2phy
+
+  reg:
+    items:
+      - description: PHY data registers
+      - description: PHY control registers
+
+  "#phy-cells":
+    const: 0
+
+  nvmem-cells:
+    maxItems: 2
+    description:
+      Phandles to nvmem cell that contains the trimming data.
+      If unspecified, default value is used.
+
+  nvmem-cell-names:
+    items:
+      - const: usb-dc-cal
+      - const: usb-dc-dis
+    description:
+      The following names, which correspond to each nvmem-cells.
+      usb-dc-cal is the driving level for each phy specified via efuse.
+      usb-dc-dis is the disconnection level for each phy specified via efuse.
+
+  realtek,inverse-hstx-sync-clock:
+    description:
+      For one of the phys of RTD1619b SoC, the synchronous clock of the
+      high-speed tx must be inverted.
+    type: boolean
+
+  realtek,driving-level:
+    description:
+      Control the magnitude of High speed Dp/Dm output swing (mV).
+      For a different board or port, the original magnitude maybe not meet
+      the specification. In this situation we can adjust the value to meet
+      the specification.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 8
+    minimum: 0
+    maximum: 31
+
+  realtek,driving-level-compensate:
+    description:
+      For RTD1315e SoC, the driving level can be adjusted by reading the
+      efuse table. This property provides drive compensation.
+      If the magnitude of High speed Dp/Dm output swing still not meet the
+      specification, then we can set this value to meet the specification.
+    $ref: /schemas/types.yaml#/definitions/int32
+    default: 0
+    minimum: -8
+    maximum: 8
+
+  realtek,disconnection-compensate:
+    description:
+      This adjusts the disconnection level compensation for the different
+      boards with different disconnection level.
+    $ref: /schemas/types.yaml#/definitions/int32
+    default: 0
+    minimum: -8
+    maximum: 8
+
+required:
+  - compatible
+  - reg
+  - "#phy-cells"
+
+allOf:
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - realtek,rtd1619b-usb2phy
+    then:
+      properties:
+        realtek,inverse-hstx-sync-clock: false
+
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - realtek,rtd1315e-usb2phy
+    then:
+      properties:
+        realtek,driving-level-compensate: false
+
+additionalProperties: false
+
+examples:
+  - |
+    usb-phy@13214 {
+        compatible = "realtek,rtd1619b-usb2phy";
+        reg = <0x13214 0x4>, <0x28280 0x4>;
+        #phy-cells = <0>;
+        nvmem-cells = <&otp_usb_port0_dc_cal>, <&otp_usb_port0_dc_dis>;
+        nvmem-cell-names = "usb-dc-cal", "usb-dc-dis";
+
+        realtek,inverse-hstx-sync-clock;
+        realtek,driving-level = <0xa>;
+        realtek,disconnection-compensate = <(-1)>;
+    };

Documentation/devicetree/bindings/phy/realtek,usb3phy.yaml

···
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2023 Realtek Semiconductor Corporation
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/realtek,usb3phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Realtek DHC SoCs USB 3.0 PHY
+
+maintainers:
+  - Stanley Chang <[e-mail]>
+
+description: |
+  Realtek USB 3.0 PHY support the digital home center (DHC) RTD series SoCs.
+  The USB 3.0 PHY driver is designed to support the XHCI controller. The SoCs
+  support multiple XHCI controllers. One PHY device node maps to one XHCI
+  controller.
+
+  RTD1295/RTD1619 SoCs USB
+  The USB architecture includes three XHCI controllers.
+  Each XHCI maps to one USB 2.0 PHY and map one USB 3.0 PHY on some
+  controllers.
+  XHCI controller#0 -- usb2phy -- phy#0
+                    |- usb3phy -- phy#0
+  XHCI controller#1 -- usb2phy -- phy#0
+  XHCI controller#2 -- usb2phy -- phy#0
+                    |- usb3phy -- phy#0
+
+  RTD1319/RTD1619b SoCs USB
+  The USB architecture includes three XHCI controllers.
+  Each XHCI maps to one USB 2.0 PHY and map one USB 3.0 PHY on controllers#2.
+  XHCI controller#0 -- usb2phy -- phy#0
+  XHCI controller#1 -- usb2phy -- phy#0
+  XHCI controller#2 -- usb2phy -- phy#0
+                    |- usb3phy -- phy#0
+
+  RTD1319d SoCs USB
+  The USB architecture includes three XHCI controllers.
+  Each xhci maps to one USB 2.0 PHY and map one USB 3.0 PHY on controllers#0.
+  XHCI controller#0 -- usb2phy -- phy#0
+                    |- usb3phy -- phy#0
+  XHCI controller#1 -- usb2phy -- phy#0
+  XHCI controller#2 -- usb2phy -- phy#0
+
+properties:
+  compatible:
+    enum:
+      - realtek,rtd1295-usb3phy
+      - realtek,rtd1319-usb3phy
+      - realtek,rtd1319d-usb3phy
+      - realtek,rtd1619-usb3phy
+      - realtek,rtd1619b-usb3phy
+
+  reg:
+    maxItems: 1
+
+  "#phy-cells":
+    const: 0
+
+  nvmem-cells:
+    maxItems: 1
+    description: A phandle to the tx lfps swing trim data provided by
+      a nvmem device, if unspecified, default values shall be used.
+
+  nvmem-cell-names:
+    items:
+      - const: usb_u3_tx_lfps_swing_trim
+
+  realtek,amplitude-control-coarse-tuning:
+    description:
+      This adjusts the signal amplitude for normal operation and beacon LFPS.
+      This value is a parameter for coarse tuning.
+      For different boards, if the default value is inappropriate, this
+      property can be assigned to adjust.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 255
+    minimum: 0
+    maximum: 255
+
+  realtek,amplitude-control-fine-tuning:
+    description:
+      This adjusts the signal amplitude for normal operation and beacon LFPS.
+      This value is used for fine-tuning parameters.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 65535
+    minimum: 0
+    maximum: 65535
+
+required:
+  - compatible
+  - reg
+  - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    usb-phy@13e10 {
+        compatible = "realtek,rtd1319d-usb3phy";
+        reg = <0x13e10 0x4>;
+        #phy-cells = <0>;
+
+        nvmem-cells = <&otp_usb_u3_tx_lfps_swing_trim>;
+        nvmem-cell-names = "usb_u3_tx_lfps_swing_trim";
+
+        realtek,amplitude-control-coarse-tuning = <0x77>;
+    };

Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml

···
               - fsl,imx23-usb
               - fsl,imx25-usb
               - fsl,imx28-usb
+              - fsl,imx35-usb
               - fsl,imx50-usb
               - fsl,imx51-usb
               - fsl,imx53-usb
···
 
   clocks:
     minItems: 1
-    maxItems: 2
+    maxItems: 3
 
   clock-names:
     minItems: 1
-    maxItems: 2
+    maxItems: 3
 
   dr_mode: true
 
···
     $ref: /schemas/types.yaml#/definitions/uint32
     minimum: 0x0
     maximum: 0xf
+
+  fsl,picophy-rise-fall-time-adjust:
+    description:
+      HS Transmitter Rise/Fall Time Adjustment. Adjust the rise/fall times
+      of the high-speed transmitter waveform. It has no unit. The rise/fall
+      time will be increased or decreased by a certain percentage relative
+      to design default time. (0:-10%; 1:design default; 2:+15%; 3:+20%)
+      Details can refer to TXRISETUNE0 bit of USBNC_n_PHY_CFG1.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 3
+    default: 1
 
   usb-phy:
     description: phandle for the PHY device. Use "phys" instead.

Documentation/devicetree/bindings/usb/cypress,hx3.yaml

···
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/cypress,hx3.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cypress HX3 USB 3.0 hub controller family
+
+maintainers:
+  - Benjamin Bara <[e-mail]>
+
+allOf:
+  - $ref: usb-device.yaml#
+
+properties:
+  compatible:
+    enum:
+      - usb4b4,6504
+      - usb4b4,6506
+
+  reg: true
+
+  reset-gpios:
+    items:
+      - description: GPIO specifier for RESETN pin.
+
+  vdd-supply:
+    description:
+      1V2 power supply (VDD_EFUSE, AVDD12, DVDD12).
+
+  vdd2-supply:
+    description:
+      3V3 power supply (AVDD33, VDD_IO).
+
+  peer-hub:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      phandle to the peer hub on the controller.
+
+required:
+  - compatible
+  - reg
+  - peer-hub
+  - vdd-supply
+  - vdd2-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    usb {
+        dr_mode = "host";
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        /* 2.0 hub on port 1 */
+        hub_2_0: hub@1 {
+          compatible = "usb4b4,6504";
+          reg = <1>;
+          peer-hub = <&hub_3_0>;
+          reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
+          vdd-supply = <&reg_1v2_usb>;
+          vdd2-supply = <&reg_3v3_usb>;
+        };
+
+        /* 3.0 hub on port 2 */
+        hub_3_0: hub@2 {
+          compatible = "usb4b4,6506";
+          reg = <2>;
+          peer-hub = <&hub_2_0>;
+          reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
+          vdd-supply = <&reg_1v2_usb>;
+          vdd2-supply = <&reg_3v3_usb>;
+        };
+    };

Documentation/devicetree/bindings/usb/generic-ehci.yaml

···
           - const: generic-ehci
       - items:
           - enum:
+              - atmel,at91sam9g45-ehci
               - cavium,octeon-6335-ehci
               - ibm,usb-ehci-440epx
               - ibm,usb-ehci-460ex

Documentation/devicetree/bindings/usb/genesys,gl850g.yaml

···
     enum:
       - usb5e3,608
       - usb5e3,610
+      - usb5e3,620
 
   reg: true
 

Documentation/devicetree/bindings/usb/qcom,dwc3.yaml

···
     items:
       - enum:
           - qcom,ipq4019-dwc3
+          - qcom,ipq5332-dwc3
           - qcom,ipq6018-dwc3
           - qcom,ipq8064-dwc3
           - qcom,ipq8074-dwc3
···
     minItems: 1
     maxItems: 9
 
-  assigned-clocks:
-    items:
-      - description: Phandle and clock specifier of MOCK_UTMI_CLK.
-      - description: Phandle and clock specifoer of MASTER_CLK.
-
-  assigned-clock-rates:
-    items:
-      - description: Must be 19.2MHz (19200000).
-      - description: Must be >= 60 MHz in HS mode, >= 125 MHz in SS mode.
   resets:
     maxItems: 1
 
···
         compatible:
           contains:
             enum:
+              - qcom,ipq5332-dwc3
               - qcom,msm8994-dwc3
               - qcom,qcs404-dwc3
     then:
···
     then:
       properties:
         clocks:
-          minItems: 6
+          minItems: 5
+          maxItems: 6
         clock-names:
-          items:
-            - const: cfg_noc
-            - const: core
-            - const: iface
-            - const: sleep
-            - const: mock_utmi
-            - const: bus
+          oneOf:
+            - items:
+                - const: cfg_noc
+                - const: core
+                - const: iface
+                - const: sleep
+                - const: mock_utmi
+                - const: bus
+            - items:
+                - const: cfg_noc
+                - const: core
+                - const: sleep
+                - const: mock_utmi
+                - const: bus
 
   - if:
       properties:
···
         compatible:
           contains:
             enum:
+              - qcom,ipq5332-dwc3
               - qcom,sdm660-dwc3
     then:
       properties:

Documentation/devicetree/bindings/usb/samsung,exynos-dwc3.yaml

···
       - samsung,exynos5250-dwusb3
       - samsung,exynos5433-dwusb3
       - samsung,exynos7-dwusb3
+      - samsung,exynos850-dwusb3
 
   '#address-cells':
     const: 1
···
       properties:
         compatible:
           contains:
-            const: samsung,exynos54333-dwusb3
+            const: samsung,exynos5433-dwusb3
     then:
       properties:
         clocks:
···
           items:
             - const: aclk
             - const: susp_clk
-            - const: pipe_pclk
             - const: phyclk
+            - const: pipe_pclk
 
   - if:
       properties:
···
             - const: usbdrd30
             - const: usbdrd30_susp_clk
             - const: usbdrd30_axius_clk
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: samsung,exynos850-dwusb3
+    then:
+      properties:
+        clocks:
+          minItems: 2
+          maxItems: 2
+        clock-names:
+          items:
+            - const: bus_early
+            - const: ref
 
 additionalProperties: false
 

Documentation/driver-api/usb/usb.rst

···
     know the devnum value already, it's the DDD value of the device file
     name.
 
+USBDEVFS_GET_SPEED
+    Returns the speed of the device. The speed is returned as a
+    nummerical value in accordance with enum usb_device_speed
+
+    File modification time is not updated by this request.
+
 USBDEVFS_GETDRIVER
     Returns the name of the kernel driver bound to a given interface (a
     string). Parameter is a pointer to this structure, which is
···
 	======= ======================================================
 	1.5	Mbit/s for low speed USB
 	12	Mbit/s for full speed USB
-	480	Mbit/s for high speed USB (added for USB 2.0);
-		also used for Wireless USB, which has no fixed speed
+	480	Mbit/s for high speed USB (added for USB 2.0)
 	5000	Mbit/s for SuperSpeed USB (added for USB 3.0)
 	======= ======================================================
 

Documentation/usb/authorization.rst

···
 
 	$ echo 1 > /sys/bus/usb/devices/usbX/authorized_default
 
-By default, Wired USB devices are authorized by default to
-connect. Wireless USB hosts deauthorize by default all new connected
-devices (this is so because we need to do an authentication phase
-before authorizing). Writing "2" to the authorized_default attribute
-causes kernel to only authorize by default devices connected to internal
-USB ports.
+By default, all USB devices are authorized.  Writing "2" to the
+authorized_default attribute causes the kernel to authorize by default
+only devices connected to internal USB ports.
 
 
 Example system lockdown (lame)

Documentation/usb/gadget-testing.rst

···
    18. UVC function
    19. PRINTER function
    20. UAC1 function (new API)
+   21. MIDI2 function
 
 
 1. ACM function
···
 
 	$ arecord -f dat -t wav -D hw:CARD=UAC1Gadget,DEV=0 | \
 	  aplay -D default:CARD=OdroidU3
+
+
+21. MIDI2 function
+==================
+
+The function is provided by usb_f_midi2.ko module.
+It will create a virtual ALSA card containing a UMP rawmidi device
+where the UMP packet is looped back. In addition, a legacy rawmidi
+device is created. The UMP rawmidi is bound with ALSA sequencer
+clients, too.
+
+Function-specific configfs interface
+------------------------------------
+
+The function name to use when creating the function directory is "midi2".
+The midi2 function provides these attributes in its function directory
+as the card top-level information:
+
+	=============	=================================================
+	process_ump	Bool flag to process UMP Stream messages (0 or 1)
+	static_block	Bool flag for static blocks (0 or 1)
+	iface_name	Optional interface name string
+	=============	=================================================
+
+The directory contains a subdirectory "ep.0", and this provides the
+attributes for a UMP Endpoint (which is a pair of USB MIDI Endpoints):
+
+	=============	=================================================
+	protocol_caps	MIDI protocol capabilities;
+			1: MIDI 1.0, 2: MIDI 2.0, or 3: both protocols
+	protocol	Default MIDI protocol (either 1 or 2)
+	ep_name		UMP Endpoint name string
+	product_id	Product ID string
+	manufacturer	Manufacture ID number (24 bit)
+	family		Device family ID number (16 bit)
+	model		Device model ID number (16 bit)
+	sw_revision	Software revision (32 bit)
+	=============	=================================================
+
+Each Endpoint subdirectory contains a subdirectory "block.0", which
+represents the Function Block for Block 0 information.
+Its attributes are:
+
+	=================	===============================================
+	name			Function Block name string
+	direction		Direction of this FB
+				1: input, 2: output, or 3: bidirectional
+	first_group		The first UMP Group number (0-15)
+	num_groups		The number of groups in this FB (1-16)
+	midi1_first_group	The first UMP Group number for MIDI 1.0 (0-15)
+	midi1_num_groups	The number of groups for MIDI 1.0 (0-16)
+	ui_hint			UI-hint of this FB
+				0: unknown, 1: receiver, 2: sender, 3: both
+	midi_ci_verison		Supported MIDI-CI version number (8 bit)
+	is_midi1		Legacy MIDI 1.0 device (0-2)
+				0: MIDI 2.0 device,
+				1: MIDI 1.0 without restriction, or
+				2: MIDI 1.0 with low speed
+	sysex8_streams		Max number of SysEx8 streams (8 bit)
+	active			Bool flag for FB activity (0 or 1)
+	=================	===============================================
+
+If multiple Function Blocks are required, you can add more Function
+Blocks by creating subdirectories "block.<num>" with the corresponding
+Function Block number (1, 2, ....). The FB subdirectories can be
+dynamically removed, too. Note that the Function Block numbers must be
+continuous.
+
+Similarly, if you multiple UMP Endpoints are required, you can add
+more Endpoints by creating subdirectories "ep.<num>". The number must
+be continuous.
+
+For emulating the old MIDI 2.0 device without UMP v1.1 support, pass 0
+to `process_ump` flag. Then the whole UMP v1.1 requests are ignored.
+
+Testing the MIDI2 function
+--------------------------
+
+On the device: run the gadget, and running::
+
+  $ cat /proc/asound/cards
+
+will show a new sound card containing a MIDI2 device.
+
+OTOH, on the host::
+
+  $ cat /proc/asound/cards
+
+will show a new sound card containing either MIDI1 or MIDI2 device,
+depending on the USB audio driver configuration.
+
+On both, when ALSA sequencer is enabled on the host, you can find the
+UMP MIDI client such as "MIDI 2.0 Gadget".
+
+As the driver simply loops back the data, there is no need for a real
+device just for testing.
+
+For testing a MIDI input from the gadget to the host (e.g. emulating a
+MIDI keyboard), you can send a MIDI stream like the following.
+
+On the gadget::
+
+  $ aconnect -o
+  ....
+  client 20: 'MIDI 2.0 Gadget' [type=kernel,card=1]
+      0 'MIDI 2.0        '
+      1 'Group 1 (MIDI 2.0 Gadget I/O)'
+  $ aplaymidi -p 20:1 to_host.mid
+
+On the host::
+
+  $ aconnect -i
+  ....
+  client 24: 'MIDI 2.0 Gadget' [type=kernel,card=2]
+      0 'MIDI 2.0        '
+      1 'Group 1 (MIDI 2.0 Gadget I/O)'
+  $ arecordmidi -p 24:1 from_gadget.mid
+
+If you have a UMP-capable application, you can use the UMP port to
+send/receive the raw UMP packets, too. For example, aseqdump program
+with UMP support can receive from UMP port. On the host::
+
+  $ aseqdump -u 2 -p 24:1
+  Waiting for data. Press Ctrl+C to end.
+  Source  Group    Event                  Ch  Data
+   24:1   Group  0, Program change          0, program 0, Bank select 0:0
+   24:1   Group  0, Channel pressure        0, value 0x80000000
+
+For testing a MIDI output to the gadget to the host (e.g. emulating a
+MIDI synth), it'll be just other way round.
+
+On the gadget::
+
+  $ arecordmidi -p 20:1 from_host.mid
+
+On the host::
+
+  $ aplaymidi -p 24:1 to_gadget.mid
+
+The access to MIDI 1.0 on altset 0 on the host is supported, and it's
+translated from/to UMP packets on the gadget. It's bound to only
+Function Block 0.
+
+The current operation mode can be observed in ALSA control element
+"Operation Mode" for SND_CTL_IFACE_RAWMIDI.  For example::
+
+  $ amixer -c1 contents
+  numid=1,iface=RAWMIDI,name='Operation Mode'
+    ; type=INTEGER,access=r--v----,values=1,min=0,max=2,step=0
+    : values=2
+
+where 0 = unused, 1 = MIDI 1.0 (altset 0), 2 = MIDI 2.0 (altset 1).
+The example above shows it's running in 2, i.e. MIDI 2.0.

arch/mips/cavium-octeon/Makefile

···
 obj-$(CONFIG_MTD)		      += flash_setup.o
 obj-$(CONFIG_SMP)		      += smp.o
 obj-$(CONFIG_OCTEON_ILM)	      += oct_ilm.o
-obj-$(CONFIG_USB)		      += octeon-usb.o

arch/mips/cavium-octeon/octeon-platform.c

···
 	{ .compatible = "cavium,octeon-3860-bootbus", },
 	{ .compatible = "cavium,mdio-mux", },
 	{ .compatible = "gpio-leds", },
-	{ .compatible = "cavium,octeon-7130-usb-uctl", },
 	{},
 };
 

arch/mips/cavium-octeon/octeon-usb.c drivers/usb/dwc3/dwc3-octeon.c

···
+// SPDX-License-Identifier: GPL-2.0
 /*
- * XHCI HCD glue for Cavium Octeon III SOCs.
+ * DWC3 glue for Cavium Octeon III SOCs.
  *
  * Copyright (C) 2010-2017 Cavium Networks
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
+ * Copyright (C) 2023 RACOM s.r.o.
  */
 
 #include <linux/bitfield.h>
···
 /* BIST fast-clear mode select. A BIST run with this bit set
  * clears all entries in USBH RAMs to 0x0.
  */
-# define USBDRD_UCTL_CTL_CLEAR_BIST		BIT(63)
+# define USBDRD_UCTL_CTL_CLEAR_BIST		BIT_ULL(63)
 /* 1 = Start BIST and cleared by hardware */
-# define USBDRD_UCTL_CTL_START_BIST		BIT(62)
+# define USBDRD_UCTL_CTL_START_BIST		BIT_ULL(62)
 /* Reference clock select for SuperSpeed and HighSpeed PLLs:
  *	0x0 = Both PLLs use DLMC_REF_CLK0 for reference clock
  *	0x1 = Both PLLs use DLMC_REF_CLK1 for reference clock
···
  *	0x3 = SuperSpeed PLL uses DLMC_REF_CLK1 for reference clock &
  *	      HighSpeed PLL uses PLL_REF_CLK for reference clck
  */
-# define USBDRD_UCTL_CTL_REF_CLK_SEL		GENMASK(61, 60)
+# define USBDRD_UCTL_CTL_REF_CLK_SEL		GENMASK_ULL(61, 60)
 /* 1 = Spread-spectrum clock enable, 0 = SS clock disable */
-# define USBDRD_UCTL_CTL_SSC_EN			BIT(59)
+# define USBDRD_UCTL_CTL_SSC_EN			BIT_ULL(59)
 /* Spread-spectrum clock modulation range:
  *	0x0 = -4980 ppm downspread
  *	0x1 = -4492 ppm downspread
  *	0x2 = -4003 ppm downspread
  *	0x3 - 0x7 = Reserved
  */
-# define USBDRD_UCTL_CTL_SSC_RANGE		GENMASK(58, 56)
+# define USBDRD_UCTL_CTL_SSC_RANGE		GENMASK_ULL(58, 56)
 /* Enable non-standard oscillator frequencies:
  *	[55:53] = modules -1
  *	[52:47] = 2's complement push amount, 0 = Feature disabled
  */
-# define USBDRD_UCTL_CTL_SSC_REF_CLK_SEL	GENMASK(55, 47)
+# define USBDRD_UCTL_CTL_SSC_REF_CLK_SEL	GENMASK_ULL(55, 47)
 /* Reference clock multiplier for non-standard frequencies:
  *	0x19 = 100MHz on DLMC_REF_CLK* if REF_CLK_SEL = 0x0 or 0x1
  *	0x28 = 125MHz on DLMC_REF_CLK* if REF_CLK_SEL = 0x0 or 0x1
  *	0x32 =  50MHz on DLMC_REF_CLK* if REF_CLK_SEL = 0x0 or 0x1
  *	Other Values = Reserved
  */
-# define USBDRD_UCTL_CTL_MPLL_MULTIPLIER	GENMASK(46, 40)
+# define USBDRD_UCTL_CTL_MPLL_MULTIPLIER	GENMASK_ULL(46, 40)
 /* Enable reference clock to prescaler for SuperSpeed functionality.
  * Should always be set to "1"
  */
-# define USBDRD_UCTL_CTL_REF_SSP_EN		BIT(39)
+# define USBDRD_UCTL_CTL_REF_SSP_EN		BIT_ULL(39)
 /* Divide the reference clock by 2 before entering the
  * REF_CLK_FSEL divider:
  *	If REF_CLK_SEL = 0x0 or 0x1, then only 0x0 is legal
···
  *		0x1 = DLMC_REF_CLK* is 125MHz
  *		0x0 = DLMC_REF_CLK* is another supported frequency
  */
-# define USBDRD_UCTL_CTL_REF_CLK_DIV2		BIT(38)
+# define USBDRD_UCTL_CTL_REF_CLK_DIV2		BIT_ULL(38)
 /* Select reference clock freqnuency for both PLL blocks:
  *	0x27 = REF_CLK_SEL is 0x0 or 0x1
  *	0x07 = REF_CLK_SEL is 0x2 or 0x3
  */
-# define USBDRD_UCTL_CTL_REF_CLK_FSEL		GENMASK(37, 32)
+# define USBDRD_UCTL_CTL_REF_CLK_FSEL		GENMASK_ULL(37, 32)
 /* Controller clock enable. */
-# define USBDRD_UCTL_CTL_H_CLK_EN		BIT(30)
+# define USBDRD_UCTL_CTL_H_CLK_EN		BIT_ULL(30)
 /* Select bypass input to controller clock divider:
  *	0x0 = Use divided coprocessor clock from H_CLKDIV
  *	0x1 = Use clock from GPIO pins
  */
-# define USBDRD_UCTL_CTL_H_CLK_BYP_SEL		BIT(29)
+# define USBDRD_UCTL_CTL_H_CLK_BYP_SEL		BIT_ULL(29)
 /* Reset controller clock divider. */
-# define USBDRD_UCTL_CTL_H_CLKDIV_RST		BIT(28)
+# define USBDRD_UCTL_CTL_H_CLKDIV_RST		BIT_ULL(28)
 /* Clock divider select:
  *	0x0 = divide by 1
  *	0x1 = divide by 2
···
  *	0x6 = divide by 24
  *	0x7 = divide by 32
  */
-# define USBDRD_UCTL_CTL_H_CLKDIV_SEL		GENMASK(26, 24)
+# define USBDRD_UCTL_CTL_H_CLKDIV_SEL		GENMASK_ULL(26, 24)
 /* USB3 port permanently attached: 0x0 = No, 0x1 = Yes */
-# define USBDRD_UCTL_CTL_USB3_PORT_PERM_ATTACH	BIT(21)
+# define USBDRD_UCTL_CTL_USB3_PORT_PERM_ATTACH	BIT_ULL(21)
 /* USB2 port permanently attached: 0x0 = No, 0x1 = Yes */
-# define USBDRD_UCTL_CTL_USB2_PORT_PERM_ATTACH	BIT(20)
+# define USBDRD_UCTL_CTL_USB2_PORT_PERM_ATTACH	BIT_ULL(20)
 /* Disable SuperSpeed PHY: 0x0 = No, 0x1 = Yes */
-# define USBDRD_UCTL_CTL_USB3_PORT_DISABLE	BIT(18)
+# define USBDRD_UCTL_CTL_USB3_PORT_DISABLE	BIT_ULL(18)
 /* Disable HighSpeed PHY: 0x0 = No, 0x1 = Yes */
-# define USBDRD_UCTL_CTL_USB2_PORT_DISABLE	BIT(16)
+# define USBDRD_UCTL_CTL_USB2_PORT_DISABLE	BIT_ULL(16)
 /* Enable PHY SuperSpeed block power: 0x0 = No, 0x1 = Yes */
-# define USBDRD_UCTL_CTL_SS_POWER_EN		BIT(14)
+# define USBDRD_UCTL_CTL_SS_POWER_EN		BIT_ULL(14)
 /* Enable PHY HighSpeed block power: 0x0 = No, 0x1 = Yes */
-# define USBDRD_UCTL_CTL_HS_POWER_EN		BIT(12)
+# define USBDRD_UCTL_CTL_HS_POWER_EN		BIT_ULL(12)
 /* Enable USB UCTL interface clock: 0xx = No, 0x1 = Yes */
-# define USBDRD_UCTL_CTL_CSCLK_EN		BIT(4)
+# define USBDRD_UCTL_CTL_CSCLK_EN		BIT_ULL(4)
 /* Controller mode: 0x0 = Host, 0x1 = Device */
-# define USBDRD_UCTL_CTL_DRD_MODE		BIT(3)
+# define USBDRD_UCTL_CTL_DRD_MODE		BIT_ULL(3)
 /* PHY reset */
-# define USBDRD_UCTL_CTL_UPHY_RST		BIT(2)
+# define USBDRD_UCTL_CTL_UPHY_RST		BIT_ULL(2)
 /* Software reset UAHC */
-# define USBDRD_UCTL_CTL_UAHC_RST		BIT(1)
+# define USBDRD_UCTL_CTL_UAHC_RST		BIT_ULL(1)
 /* Software resets UCTL */
-# define USBDRD_UCTL_CTL_UCTL_RST		BIT(0)
+# define USBDRD_UCTL_CTL_UCTL_RST		BIT_ULL(0)
 
 #define USBDRD_UCTL_BIST_STATUS			0x08
 #define USBDRD_UCTL_SPARE0			0x10
···
  */
 #define USBDRD_UCTL_HOST_CFG			0xe0
 /* Indicates minimum value of all received BELT values */
-# define USBDRD_UCTL_HOST_CFG_HOST_CURRENT_BELT	GENMASK(59, 48)
+# define USBDRD_UCTL_HOST_CFG_HOST_CURRENT_BELT	GENMASK_ULL(59, 48)
 /* HS jitter adjustment */
-# define USBDRD_UCTL_HOST_CFG_FLA		GENMASK(37, 32)
+# define USBDRD_UCTL_HOST_CFG_FLA		GENMASK_ULL(37, 32)
 /* Bus-master enable: 0x0 = Disabled (stall DMAs), 0x1 = enabled */
-# define USBDRD_UCTL_HOST_CFG_BME		BIT(28)
+# define USBDRD_UCTL_HOST_CFG_BME		BIT_ULL(28)
 /* Overcurrent protection enable: 0x0 = unavailable, 0x1 = available */
-# define USBDRD_UCTL_HOST_OCI_EN		BIT(27)
+# define USBDRD_UCTL_HOST_OCI_EN		BIT_ULL(27)
 /* Overcurrent sene selection:
  *	0x0 = Overcurrent indication from off-chip is active-low
  *	0x1 = Overcurrent indication from off-chip is active-high
  */
-# define USBDRD_UCTL_HOST_OCI_ACTIVE_HIGH_EN	BIT(26)
+# define USBDRD_UCTL_HOST_OCI_ACTIVE_HIGH_EN	BIT_ULL(26)
 /* Port power control enable: 0x0 = unavailable, 0x1 = available */
-# define USBDRD_UCTL_HOST_PPC_EN		BIT(25)
+# define USBDRD_UCTL_HOST_PPC_EN		BIT_ULL(25)
 /* Port power control sense selection:
  *	0x0 = Port power to off-chip is active-low
  *	0x1 = Port power to off-chip is active-high
  */
-# define USBDRD_UCTL_HOST_PPC_ACTIVE_HIGH_EN	BIT(24)
+# define USBDRD_UCTL_HOST_PPC_ACTIVE_HIGH_EN	BIT_ULL(24)
 
 /*
  * UCTL Shim Features Register
  */
 #define USBDRD_UCTL_SHIM_CFG			0xe8
 /* Out-of-bound UAHC register access: 0 = read, 1 = write */
-# define USBDRD_UCTL_SHIM_CFG_XS_NCB_OOB_WRN	BIT(63)
+# define USBDRD_UCTL_SHIM_CFG_XS_NCB_OOB_WRN	BIT_ULL(63)
 /* SRCID error log for out-of-bound UAHC register access:
  *	[59:58] = chipID
  *	[57] = Request source: 0 = core, 1 = NCB-device
  *	[56:51] = Core/NCB-device number, [56] always 0 for NCB devices
  *	[50:48] = SubID
  */
-# define USBDRD_UCTL_SHIM_CFG_XS_NCB_OOB_OSRC	GENMASK(59, 48)
+# define USBDRD_UCTL_SHIM_CFG_XS_NCB_OOB_OSRC	GENMASK_ULL(59, 48)
 /* Error log for bad UAHC DMA access: 0 = Read log, 1 = Write log */
-# define USBDRD_UCTL_SHIM_CFG_XM_BAD_DMA_WRN	BIT(47)
+# define USBDRD_UCTL_SHIM_CFG_XM_BAD_DMA_WRN	BIT_ULL(47)
 /* Encoded error type for bad UAHC DMA */
-# define USBDRD_UCTL_SHIM_CFG_XM_BAD_DMA_TYPE	GENMASK(43, 40)
+# define USBDRD_UCTL_SHIM_CFG_XM_BAD_DMA_TYPE	GENMASK_ULL(43, 40)
 /* Select the IOI read command used by DMA accesses */
-# define USBDRD_UCTL_SHIM_CFG_DMA_READ_CMD	BIT(12)
+# define USBDRD_UCTL_SHIM_CFG_DMA_READ_CMD	BIT_ULL(12)
 /* Select endian format for DMA accesses to the L2C:
  *	0x0 = Little endian
  *	0x1 = Big endian
  *	0x2 = Reserved
  *	0x3 = Reserved
  */
-# define USBDRD_UCTL_SHIM_CFG_DMA_ENDIAN_MODE	GENMASK(9, 8)
+# define USBDRD_UCTL_SHIM_CFG_DMA_ENDIAN_MODE	GENMASK_ULL(9, 8)
 /* Select endian format for IOI CSR access to UAHC:
  *	0x0 = Little endian
  *	0x1 = Big endian
  *	0x2 = Reserved
  *	0x3 = Reserved
  */
-# define USBDRD_UCTL_SHIM_CFG_CSR_ENDIAN_MODE	GENMASK(1, 0)
+# define USBDRD_UCTL_SHIM_CFG_CSR_ENDIAN_MODE	GENMASK_ULL(1, 0)
 
 #define USBDRD_UCTL_ECC				0xf0
 #define USBDRD_UCTL_SPARE1			0xf8
 
-static DEFINE_MUTEX(dwc3_octeon_clocks_mutex);
+struct dwc3_octeon {
+	struct device *dev;
+	void __iomem *base;
+};
+
+#define DWC3_GPIO_POWER_NONE	(-1)
 
 #ifdef CONFIG_CAVIUM_OCTEON_SOC
 #include <asm/octeon/octeon.h>
···
 static inline void dwc3_octeon_writeq(void __iomem *base, uint64_t val) { }
 
 static inline void dwc3_octeon_config_gpio(int index, int gpio) { }
+
+static uint64_t octeon_get_io_clock_rate(void)
+{
+	return 150000000;
+}
 #endif
 
 static int dwc3_octeon_get_divider(void)
···
 	while (div < ARRAY_SIZE(clk_div)) {
 		uint64_t rate = octeon_get_io_clock_rate() / clk_div[div];
 		if (rate <= 300000000 && rate >= 150000000)
-			break;
+			return div;
 		div++;
 	}
 
-	return div;
+	return -EINVAL;
 }
 
-static int dwc3_octeon_config_power(struct device *dev, void __iomem *base)
+static int dwc3_octeon_setup(struct dwc3_octeon *octeon,
+			     int ref_clk_sel, int ref_clk_fsel, int mpll_mul,
+			     int power_gpio, int power_active_low)
 {
-	uint32_t gpio_pwr[3];
-	int gpio, len, power_active_low;
-	struct device_node *node = dev->of_node;
 	u64 val;
-	void __iomem *uctl_host_cfg_reg = base + USBDRD_UCTL_HOST_CFG;
-
-	if (of_find_property(node, "power", &len) != NULL) {
-		if (len == 12) {
-			of_property_read_u32_array(node, "power", gpio_pwr, 3);
-			power_active_low = gpio_pwr[2] & 0x01;
-			gpio = gpio_pwr[1];
-		} else if (len == 8) {
-			of_property_read_u32_array(node, "power", gpio_pwr, 2);
-			power_active_low = 0;
-			gpio = gpio_pwr[1];
-		} else {
-			dev_err(dev, "invalid power configuration\n");
-			return -EINVAL;
-		}
-		dwc3_octeon_config_gpio(((u64)base >> 24) & 1, gpio);
-
-		/* Enable XHCI power control and set if active high or low. */
-		val = dwc3_octeon_readq(uctl_host_cfg_reg);
-		val |= USBDRD_UCTL_HOST_PPC_EN;
-		if (power_active_low)
-			val &= ~USBDRD_UCTL_HOST_PPC_ACTIVE_HIGH_EN;
-		else
-			val |= USBDRD_UCTL_HOST_PPC_ACTIVE_HIGH_EN;
-		dwc3_octeon_writeq(uctl_host_cfg_reg, val);
-	} else {
-		/* Disable XHCI power control and set if active high. */
-		val = dwc3_octeon_readq(uctl_host_cfg_reg);
-		val &= ~USBDRD_UCTL_HOST_PPC_EN;
-		val &= ~USBDRD_UCTL_HOST_PPC_ACTIVE_HIGH_EN;
-		dwc3_octeon_writeq(uctl_host_cfg_reg, val);
-		dev_info(dev, "power control disabled\n");
-	}
-	return 0;
-}
-
-static int dwc3_octeon_clocks_start(struct device *dev, void __iomem *base)
-{
-	int i, div, mpll_mul, ref_clk_fsel, ref_clk_sel = 2;
-	u32 clock_rate;
-	u64 val;
-	void __iomem *uctl_ctl_reg = base + USBDRD_UCTL_CTL;
-
-	if (dev->of_node) {
-		const char *ss_clock_type;
-		const char *hs_clock_type;
-
-		i = of_property_read_u32(dev->of_node,
-					 "refclk-frequency", &clock_rate);
-		if (i) {
-			dev_err(dev, "No UCTL \"refclk-frequency\"\n");
-			return -EINVAL;
-		}
-		i = of_property_read_string(dev->of_node,
-					    "refclk-type-ss", &ss_clock_type);
-		if (i) {
-			dev_err(dev, "No UCTL \"refclk-type-ss\"\n");
-			return -EINVAL;
-		}
-		i = of_property_read_string(dev->of_node,
-					    "refclk-type-hs", &hs_clock_type);
-		if (i) {
-			dev_err(dev, "No UCTL \"refclk-type-hs\"\n");
-			return -EINVAL;
-		}
-		if (strcmp("dlmc_ref_clk0", ss_clock_type) == 0) {
-			if (strcmp(hs_clock_type, "dlmc_ref_clk0") == 0)
-				ref_clk_sel = 0;
-			else if (strcmp(hs_clock_type, "pll_ref_clk") == 0)
-				ref_clk_sel = 2;
-			else
-				dev_warn(dev, "Invalid HS clock type %s, using pll_ref_clk instead\n",
-					 hs_clock_type);
-		} else if (strcmp(ss_clock_type, "dlmc_ref_clk1") == 0) {
-			if (strcmp(hs_clock_type, "dlmc_ref_clk1") == 0)
-				ref_clk_sel = 1;
-			else if (strcmp(hs_clock_type, "pll_ref_clk") == 0)
-				ref_clk_sel = 3;
-			else {
-				dev_warn(dev, "Invalid HS clock type %s, using pll_ref_clk instead\n",
-					 hs_clock_type);
-				ref_clk_sel = 3;
-			}
-		} else
-			dev_warn(dev, "Invalid SS clock type %s, using dlmc_ref_clk0 instead\n",
-				 ss_clock_type);
-
-		if ((ref_clk_sel == 0 || ref_clk_sel == 1) &&
-		    (clock_rate != 100000000))
-			dev_warn(dev, "Invalid UCTL clock rate of %u, using 100000000 instead\n",
-				 clock_rate);
-
-	} else {
-		dev_err(dev, "No USB UCTL device node\n");
-		return -EINVAL;
-	}
+	int div;
+	struct device *dev = octeon->dev;
+	void __iomem *uctl_ctl_reg = octeon->base + USBDRD_UCTL_CTL;
+	void __iomem *uctl_host_cfg_reg = octeon->base + USBDRD_UCTL_HOST_CFG;
 
 	/*
 	 * Step 1: Wait for all voltages to be stable...that surely
···
 
 	/* Step 4b: Select controller clock frequency. */
 	div = dwc3_octeon_get_divider();
+	if (div < 0) {
+		dev_err(dev, "clock divider invalid\n");
+		return div;
+	}
 	val = dwc3_octeon_readq(uctl_ctl_reg);
 	val &= ~USBDRD_UCTL_CTL_H_CLKDIV_SEL;
 	val |= FIELD_PREP(USBDRD_UCTL_CTL_H_CLKDIV_SEL, div);
···
 	val = dwc3_octeon_readq(uctl_ctl_reg);
 	if ((div != FIELD_GET(USBDRD_UCTL_CTL_H_CLKDIV_SEL, val)) ||
 	    (!(FIELD_GET(USBDRD_UCTL_CTL_H_CLK_EN, val)))) {
-		dev_err(dev, "dwc3 controller clock init failure.\n");
-			return -EINVAL;
+		dev_err(dev, "clock init failure (UCTL_CTL=%016llx)\n", val);
+		return -EINVAL;
 	}
 
 	/* Step 4c: Deassert the controller clock divider reset. */
···
 	val &= ~USBDRD_UCTL_CTL_REF_CLK_SEL;
 	val |= FIELD_PREP(USBDRD_UCTL_CTL_REF_CLK_SEL, ref_clk_sel);
 
-	ref_clk_fsel = 0x07;
-	switch (clock_rate) {
-	default:
-		dev_warn(dev, "Invalid ref_clk %u, using 100000000 instead\n",
-			 clock_rate);
-		fallthrough;
-	case 100000000:
-		mpll_mul = 0x19;
-		if (ref_clk_sel < 2)
-			ref_clk_fsel = 0x27;
-		break;
-	case 50000000:
-		mpll_mul = 0x32;
-		break;
-	case 125000000:
-		mpll_mul = 0x28;
-		break;
-	}
 	val &= ~USBDRD_UCTL_CTL_REF_CLK_FSEL;
 	val |= FIELD_PREP(USBDRD_UCTL_CTL_REF_CLK_FSEL, ref_clk_fsel);
 
···
 	/* Step 8b: Wait 10 controller-clock cycles. */
 	udelay(10);
 
-	/* Steo 8c: Setup power-power control. */
-	if (dwc3_octeon_config_power(dev, base))
-		return -EINVAL;
+	/* Step 8c: Setup power control. */
+	val = dwc3_octeon_readq(uctl_host_cfg_reg);
+	val |= USBDRD_UCTL_HOST_PPC_EN;
+	if (power_gpio == DWC3_GPIO_POWER_NONE) {
+		val &= ~USBDRD_UCTL_HOST_PPC_EN;
+	} else {
+		val |= USBDRD_UCTL_HOST_PPC_EN;
+		dwc3_octeon_config_gpio(((__force uintptr_t)octeon->base >> 24) & 1,
+					power_gpio);
+		dev_dbg(dev, "power control is using gpio%d\n", power_gpio);
+	}
+	if (power_active_low)
+		val &= ~USBDRD_UCTL_HOST_PPC_ACTIVE_HIGH_EN;
+	else
+		val |= USBDRD_UCTL_HOST_PPC_ACTIVE_HIGH_EN;
+	dwc3_octeon_writeq(uctl_host_cfg_reg, val);
 
 	/* Step 8d: Deassert UAHC reset signal. */
 	val = dwc3_octeon_readq(uctl_ctl_reg);
···
 	return 0;
 }
 
-static void __init dwc3_octeon_set_endian_mode(void __iomem *base)
+static void dwc3_octeon_set_endian_mode(struct dwc3_octeon *octeon)
 {
 	u64 val;
-	void __iomem *uctl_shim_cfg_reg = base + USBDRD_UCTL_SHIM_CFG;
+	void __iomem *uctl_shim_cfg_reg = octeon->base + USBDRD_UCTL_SHIM_CFG;
 
 	val = dwc3_octeon_readq(uctl_shim_cfg_reg);
 	val &= ~USBDRD_UCTL_SHIM_CFG_DMA_ENDIAN_MODE;
···
 	dwc3_octeon_writeq(uctl_shim_cfg_reg, val);
 }
 
-static void __init dwc3_octeon_phy_reset(void __iomem *base)
+static void dwc3_octeon_phy_reset(struct dwc3_octeon *octeon)
 {
 	u64 val;
-	void __iomem *uctl_ctl_reg = base + USBDRD_UCTL_CTL;
+	void __iomem *uctl_ctl_reg = octeon->base + USBDRD_UCTL_CTL;
 
 	val = dwc3_octeon_readq(uctl_ctl_reg);
 	val &= ~USBDRD_UCTL_CTL_UPHY_RST;
 	dwc3_octeon_writeq(uctl_ctl_reg, val);
 }
 
-static int __init dwc3_octeon_device_init(void)
+static int dwc3_octeon_probe(struct platform_device *pdev)
 {
-	const char compat_node_name[] = "cavium,octeon-7130-usb-uctl";
-	struct platform_device *pdev;
-	struct device_node *node;
-	struct resource *res;
-	void __iomem *base;
+	struct device *dev = &pdev->dev;
+	struct device_node *node = dev->of_node;
+	struct dwc3_octeon *octeon;
+	const char *hs_clock_type, *ss_clock_type;
+	int ref_clk_sel, ref_clk_fsel, mpll_mul;
+	int power_active_low, power_gpio;
+	int err, len;
+	u32 clock_rate;
 
-	/*
-	 * There should only be three universal controllers, "uctl"
-	 * in the device tree. Two USB and a SATA, which we ignore.
-	 */
-	node = NULL;
-	do {
-		node = of_find_node_by_name(node, "uctl");
-		if (!node)
-			return -ENODEV;
+	if (of_property_read_u32(node, "refclk-frequency", &clock_rate)) {
+		dev_err(dev, "No UCTL \"refclk-frequency\"\n");
+		return -EINVAL;
+	}
+	if (of_property_read_string(node, "refclk-type-ss", &ss_clock_type)) {
+		dev_err(dev, "No UCTL \"refclk-type-ss\"\n");
+		return -EINVAL;
+	}
+	if (of_property_read_string(node, "refclk-type-hs", &hs_clock_type)) {
+		dev_err(dev, "No UCTL \"refclk-type-hs\"\n");
+		return -EINVAL;
+	}
 
-		if (of_device_is_compatible(node, compat_node_name)) {
-			pdev = of_find_device_by_node(node);
-			if (!pdev)
-				return -ENODEV;
-
-			/*
-			 * The code below maps in the registers necessary for
-			 * setting up the clocks and reseting PHYs. We must
-			 * release the resources so the dwc3 subsystem doesn't
-			 * know the difference.
-			 */
-			base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
-			if (IS_ERR(base)) {
-				put_device(&pdev->dev);
-				return PTR_ERR(base);
-			}
-
-			mutex_lock(&dwc3_octeon_clocks_mutex);
-			if (dwc3_octeon_clocks_start(&pdev->dev, base) == 0)
-				dev_info(&pdev->dev, "clocks initialized.\n");
-			dwc3_octeon_set_endian_mode(base);
-			dwc3_octeon_phy_reset(base);
-			mutex_unlock(&dwc3_octeon_clocks_mutex);
-			devm_iounmap(&pdev->dev, base);
-			devm_release_mem_region(&pdev->dev, res->start,
-						resource_size(res));
-			put_device(&pdev->dev);
+	ref_clk_sel = 2;
+	if (strcmp("dlmc_ref_clk0", ss_clock_type) == 0) {
+		if (strcmp(hs_clock_type, "dlmc_ref_clk0") == 0)
+			ref_clk_sel = 0;
+		else if (strcmp(hs_clock_type, "pll_ref_clk"))
+			dev_warn(dev, "Invalid HS clock type %s, using pll_ref_clk instead\n",
+				 hs_clock_type);
+	} else if (strcmp(ss_clock_type, "dlmc_ref_clk1") == 0) {
+		if (strcmp(hs_clock_type, "dlmc_ref_clk1") == 0) {
+			ref_clk_sel = 1;
+		} else {
+			ref_clk_sel = 3;
+			if (strcmp(hs_clock_type, "pll_ref_clk"))
+				dev_warn(dev, "Invalid HS clock type %s, using pll_ref_clk instead\n",
+					 hs_clock_type);
 		}
-	} while (node != NULL);
+	} else {
+		dev_warn(dev, "Invalid SS clock type %s, using dlmc_ref_clk0 instead\n",
+			 ss_clock_type);
+	}
 
-	return 0;
+	ref_clk_fsel = 0x07;
+	switch (clock_rate) {
+	default:
+		dev_warn(dev, "Invalid ref_clk %u, using 100000000 instead\n",
+			 clock_rate);
+		fallthrough;
+	case 100000000:
+		mpll_mul = 0x19;
+		if (ref_clk_sel < 2)
+			ref_clk_fsel = 0x27;
+		break;
+	case 50000000:
+		mpll_mul = 0x32;
+		break;
+	case 125000000:
+		mpll_mul = 0x28;
+		break;
+	}
+
+	power_gpio = DWC3_GPIO_POWER_NONE;
+	power_active_low = 0;
+	if (of_find_property(node, "power", &len)) {
+		u32 gpio_pwr[3];
+
+		switch (len) {
+		case 8:
+			of_property_read_u32_array(node, "power", gpio_pwr, 2);
+			break;
+		case 12:
+			of_property_read_u32_array(node, "power", gpio_pwr, 3);
+			power_active_low = gpio_pwr[2] & 0x01;
+			break;
+		default:
+			dev_err(dev, "invalid power configuration\n");
+			return -EINVAL;
+		}
+		power_gpio = gpio_pwr[1];
+	}
+
+	octeon = devm_kzalloc(dev, sizeof(*octeon), GFP_KERNEL);
+	if (!octeon)
+		return -ENOMEM;
+
+	octeon->dev = dev;
+	octeon->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(octeon->base))
+		return PTR_ERR(octeon->base);
+
+	err = dwc3_octeon_setup(octeon, ref_clk_sel, ref_clk_fsel, mpll_mul,
+				power_gpio, power_active_low);
+	if (err)
+		return err;
+
+	dwc3_octeon_set_endian_mode(octeon);
+	dwc3_octeon_phy_reset(octeon);
+
+	platform_set_drvdata(pdev, octeon);
+
+	return of_platform_populate(node, NULL, NULL, dev);
 }
-device_initcall(dwc3_octeon_device_init);
 
-MODULE_AUTHOR("David Daney <[e-mail]>");
+static void dwc3_octeon_remove(struct platform_device *pdev)
+{
+	struct dwc3_octeon *octeon = platform_get_drvdata(pdev);
+
+	of_platform_depopulate(octeon->dev);
+}
+
+static const struct of_device_id dwc3_octeon_of_match[] = {
+	{ .compatible = "cavium,octeon-7130-usb-uctl" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, dwc3_octeon_of_match);
+
+static struct platform_driver dwc3_octeon_driver = {
+	.probe		= dwc3_octeon_probe,
+	.remove_new	= dwc3_octeon_remove,
+	.driver		= {
+		.name	= "dwc3-octeon",
+		.of_match_table = dwc3_octeon_of_match,
+	},
+};
+module_platform_driver(dwc3_octeon_driver);
+
+MODULE_ALIAS("platform:dwc3-octeon");
+MODULE_AUTHOR("Ladislav Michl <[e-mail]>");
 MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("USB driver for OCTEON III SoC");
+MODULE_DESCRIPTION("DesignWare USB3 OCTEON III Glue Layer");

drivers/net/wireless/mediatek/mt76/usb.c

···
 	struct usb_device *udev = interface_to_usbdev(uintf);
 
 	return (!disable_usb_sg && udev->bus->sg_tablesize > 0 &&
-		(udev->bus->no_sg_constraint ||
-		 udev->speed == USB_SPEED_WIRELESS));
+		udev->bus->no_sg_constraint);
 }
 
 static int

drivers/phy/Kconfig

···
 source "drivers/phy/mscc/Kconfig"
 source "drivers/phy/qualcomm/Kconfig"
 source "drivers/phy/ralink/Kconfig"
+source "drivers/phy/realtek/Kconfig"
 source "drivers/phy/renesas/Kconfig"
 source "drivers/phy/rockchip/Kconfig"
 source "drivers/phy/samsung/Kconfig"

drivers/phy/Makefile

···
 					   mscc/	\
 					   qualcomm/	\
 					   ralink/	\
+					   realtek/	\
 					   renesas/	\
 					   rockchip/	\
 					   samsung/	\

drivers/phy/realtek/Kconfig

···
+# SPDX-License-Identifier: GPL-2.0
+#
+# Phy drivers for Realtek platforms
+#
+config PHY_RTK_RTD_USB2PHY
+	tristate "Realtek RTD USB2 PHY Transceiver Driver"
+	depends on USB_SUPPORT
+	select GENERIC_PHY
+	select USB_PHY
+	select USB_COMMON
+	help
+	  Enable this to support Realtek SoC USB2 phy transceiver.
+	  The DHC (digital home center) RTD series SoCs used the Synopsys
+	  DWC3 USB IP. This driver will do the PHY initialization
+	  of the parameters.
+
+config PHY_RTK_RTD_USB3PHY
+	tristate "Realtek RTD USB3 PHY Transceiver Driver"
+	depends on USB_SUPPORT
+	select GENERIC_PHY
+	select USB_PHY
+	select USB_COMMON
+	help
+	  Enable this to support Realtek SoC USB3 phy transceiver.
+	  The DHC (digital home center) RTD series SoCs used the Synopsys
+	  DWC3 USB IP. This driver will do the PHY initialization
+	  of the parameters.

drivers/phy/realtek/Makefile

···
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_PHY_RTK_RTD_USB2PHY)	+= phy-rtk-usb2.o
+obj-$(CONFIG_PHY_RTK_RTD_USB3PHY)	+= phy-rtk-usb3.o

drivers/phy/realtek/phy-rtk-usb2.c

···
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  phy-rtk-usb2.c RTK usb2.0 PHY driver
+ *
+ * Copyright (C) 2023 Realtek Semiconductor Corporation
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/uaccess.h>
+#include <linux/debugfs.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/regmap.h>
+#include <linux/sys_soc.h>
+#include <linux/mfd/syscon.h>
+#include <linux/phy/phy.h>
+#include <linux/usb.h>
+#include <linux/usb/phy.h>
+#include <linux/usb/hcd.h>
+
+/* GUSB2PHYACCn register */
+#define PHY_NEW_REG_REQ BIT(25)
+#define PHY_VSTS_BUSY   BIT(23)
+#define PHY_VCTRL_SHIFT 8
+#define PHY_REG_DATA_MASK 0xff
+
+#define GET_LOW_NIBBLE(addr) ((addr) & 0x0f)
+#define GET_HIGH_NIBBLE(addr) (((addr) & 0xf0) >> 4)
+
+#define EFUS_USB_DC_CAL_RATE 2
+#define EFUS_USB_DC_CAL_MAX 7
+
+#define EFUS_USB_DC_DIS_RATE 1
+#define EFUS_USB_DC_DIS_MAX 7
+
+#define MAX_PHY_DATA_SIZE 20
+#define OFFEST_PHY_READ 0x20
+
+#define MAX_USB_PHY_NUM 4
+#define MAX_USB_PHY_PAGE0_DATA_SIZE 16
+#define MAX_USB_PHY_PAGE1_DATA_SIZE 16
+#define MAX_USB_PHY_PAGE2_DATA_SIZE 8
+
+#define SET_PAGE_OFFSET 0xf4
+#define SET_PAGE_0 0x9b
+#define SET_PAGE_1 0xbb
+#define SET_PAGE_2 0xdb
+
+#define PAGE_START 0xe0
+#define PAGE0_0XE4 0xe4
+#define PAGE0_0XE6 0xe6
+#define PAGE0_0XE7 0xe7
+#define PAGE1_0XE0 0xe0
+#define PAGE1_0XE2 0xe2
+
+#define SENSITIVITY_CTRL (BIT(4) | BIT(5) | BIT(6))
+#define ENABLE_AUTO_SENSITIVITY_CALIBRATION BIT(2)
+#define DEFAULT_DC_DRIVING_VALUE (0x8)
+#define DEFAULT_DC_DISCONNECTION_VALUE (0x6)
+#define HS_CLK_SELECT BIT(6)
+
+struct phy_reg {
+	void __iomem *reg_wrap_vstatus;
+	void __iomem *reg_gusb2phyacc0;
+	int vstatus_index;
+};
+
+struct phy_data {
+	u8 addr;
+	u8 data;
+};
+
+struct phy_cfg {
+	int page0_size;
+	struct phy_data page0[MAX_USB_PHY_PAGE0_DATA_SIZE];
+	int page1_size;
+	struct phy_data page1[MAX_USB_PHY_PAGE1_DATA_SIZE];
+	int page2_size;
+	struct phy_data page2[MAX_USB_PHY_PAGE2_DATA_SIZE];
+
+	int num_phy;
+
+	bool check_efuse;
+	int check_efuse_version;
+#define CHECK_EFUSE_V1 1
+#define CHECK_EFUSE_V2 2
+	int efuse_dc_driving_rate;
+	int efuse_dc_disconnect_rate;
+	int dc_driving_mask;
+	int dc_disconnect_mask;
+	bool usb_dc_disconnect_at_page0;
+	int driving_updated_for_dev_dis;
+
+	bool do_toggle;
+	bool do_toggle_driving;
+	bool use_default_parameter;
+	bool is_double_sensitivity_mode;
+};
+
+struct phy_parameter {
+	struct phy_reg phy_reg;
+
+	/* Get from efuse */
+	s8 efuse_usb_dc_cal;
+	s8 efuse_usb_dc_dis;
+
+	/* Get from dts */
+	bool inverse_hstx_sync_clock;
+	u32 driving_level;
+	s32 driving_level_compensate;
+	s32 disconnection_compensate;
+};
+
+struct rtk_phy {
+	struct usb_phy phy;
+	struct device *dev;
+
+	struct phy_cfg *phy_cfg;
+	int num_phy;
+	struct phy_parameter *phy_parameter;
+
+	struct dentry *debug_dir;
+};
+
+/* mapping 0xE0 to 0 ... 0xE7 to 7, 0xF0 to 8 ,,, 0xF7 to 15 */
+static inline int page_addr_to_array_index(u8 addr)
+{
+	return (int)((((addr) - PAGE_START) & 0x7) +
+		((((addr) - PAGE_START) & 0x10) >> 1));
+}
+
+static inline u8 array_index_to_page_addr(int index)
+{
+	return ((((index) + PAGE_START) & 0x7) +
+		((((index) & 0x8) << 1) + PAGE_START));
+}
+
+#define PHY_IO_TIMEOUT_USEC		(50000)
+#define PHY_IO_DELAY_US			(100)
+
+static inline int utmi_wait_register(void __iomem *reg, u32 mask, u32 result)
+{
+	int ret;
+	unsigned int val;
+
+	ret = read_poll_timeout(readl, val, ((val & mask) == result),
+				PHY_IO_DELAY_US, PHY_IO_TIMEOUT_USEC, false, reg);
+	if (ret) {
+		pr_err("%s can't program USB phy\n", __func__);
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static char rtk_phy_read(struct phy_reg *phy_reg, char addr)
+{
+	void __iomem *reg_gusb2phyacc0 = phy_reg->reg_gusb2phyacc0;
+	unsigned int val;
+	int ret = 0;
+
+	addr -= OFFEST_PHY_READ;
+
+	/* polling until VBusy == 0 */
+	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	if (ret)
+		return (char)ret;
+
+	/* VCtrl = low nibble of addr, and set PHY_NEW_REG_REQ */
+	val = PHY_NEW_REG_REQ | (GET_LOW_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+	writel(val, reg_gusb2phyacc0);
+	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	if (ret)
+		return (char)ret;
+
+	/* VCtrl = high nibble of addr, and set PHY_NEW_REG_REQ */
+	val = PHY_NEW_REG_REQ | (GET_HIGH_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+	writel(val, reg_gusb2phyacc0);
+	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	if (ret)
+		return (char)ret;
+
+	val = readl(reg_gusb2phyacc0);
+
+	return (char)(val & PHY_REG_DATA_MASK);
+}
+
+static int rtk_phy_write(struct phy_reg *phy_reg, char addr, char data)
+{
+	unsigned int val;
+	void __iomem *reg_wrap_vstatus = phy_reg->reg_wrap_vstatus;
+	void __iomem *reg_gusb2phyacc0 = phy_reg->reg_gusb2phyacc0;
+	int shift_bits = phy_reg->vstatus_index * 8;
+	int ret = 0;
+
+	/* write data to VStatusOut2 (data output to phy) */
+	writel((u32)data << shift_bits, reg_wrap_vstatus);
+
+	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	if (ret)
+		return ret;
+
+	/* VCtrl = low nibble of addr, set PHY_NEW_REG_REQ */
+	val = PHY_NEW_REG_REQ | (GET_LOW_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+
+	writel(val, reg_gusb2phyacc0);
+	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	if (ret)
+		return ret;
+
+	/* VCtrl = high nibble of addr, set PHY_NEW_REG_REQ */
+	val = PHY_NEW_REG_REQ | (GET_HIGH_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+
+	writel(val, reg_gusb2phyacc0);
+	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int rtk_phy_set_page(struct phy_reg *phy_reg, int page)
+{
+	switch (page) {
+	case 0:
+		return rtk_phy_write(phy_reg, SET_PAGE_OFFSET, SET_PAGE_0);
+	case 1:
+		return rtk_phy_write(phy_reg, SET_PAGE_OFFSET, SET_PAGE_1);
+	case 2:
+		return rtk_phy_write(phy_reg, SET_PAGE_OFFSET, SET_PAGE_2);
+	default:
+		pr_err("%s error page=%d\n", __func__, page);
+	}
+
+	return -EINVAL;
+}
+
+static u8 __updated_dc_disconnect_level_page0_0xe4(struct phy_cfg *phy_cfg,
+						   struct phy_parameter *phy_parameter, u8 data)
+{
+	u8 ret;
+	s32 val;
+	s32 dc_disconnect_mask = phy_cfg->dc_disconnect_mask;
+	int offset = 4;
+
+	val = (s32)((data >> offset) & dc_disconnect_mask)
+		     + phy_parameter->efuse_usb_dc_dis
+		     + phy_parameter->disconnection_compensate;
+
+	if (val > dc_disconnect_mask)
+		val = dc_disconnect_mask;
+	else if (val < 0)
+		val = 0;
+
+	ret = (data & (~(dc_disconnect_mask << offset))) |
+		    (val & dc_disconnect_mask) << offset;
+
+	return ret;
+}
+
+/* updated disconnect level at page0 */
+static void update_dc_disconnect_level_at_page0(struct rtk_phy *rtk_phy,
+						struct phy_parameter *phy_parameter, bool update)
+{
+	struct phy_cfg *phy_cfg;
+	struct phy_reg *phy_reg;
+	struct phy_data *phy_data_page;
+	struct phy_data *phy_data;
+	u8 addr, data;
+	int offset = 4;
+	s32 dc_disconnect_mask;
+	int i;
+
+	phy_cfg = rtk_phy->phy_cfg;
+	phy_reg = &phy_parameter->phy_reg;
+
+	/* Set page 0 */
+	phy_data_page = phy_cfg->page0;
+	rtk_phy_set_page(phy_reg, 0);
+
+	i = page_addr_to_array_index(PAGE0_0XE4);
+	phy_data = phy_data_page + i;
+	if (!phy_data->addr) {
+		phy_data->addr = PAGE0_0XE4;
+		phy_data->data = rtk_phy_read(phy_reg, PAGE0_0XE4);
+	}
+
+	addr = phy_data->addr;
+	data = phy_data->data;
+	dc_disconnect_mask = phy_cfg->dc_disconnect_mask;
+
+	if (update)
+		data = __updated_dc_disconnect_level_page0_0xe4(phy_cfg, phy_parameter, data);
+	else
+		data = (data & ~(dc_disconnect_mask << offset)) |
+			(DEFAULT_DC_DISCONNECTION_VALUE << offset);
+
+	if (rtk_phy_write(phy_reg, addr, data))
+		dev_err(rtk_phy->dev,
+			"%s: Error to set page1 parameter addr=0x%x value=0x%x\n",
+			__func__, addr, data);
+}
+
+static u8 __updated_dc_disconnect_level_page1_0xe2(struct phy_cfg *phy_cfg,
+						   struct phy_parameter *phy_parameter, u8 data)
+{
+	u8 ret;
+	s32 val;
+	s32 dc_disconnect_mask = phy_cfg->dc_disconnect_mask;
+
+	if (phy_cfg->check_efuse_version == CHECK_EFUSE_V1) {
+		val = (s32)(data & dc_disconnect_mask)
+			    + phy_parameter->efuse_usb_dc_dis
+			    + phy_parameter->disconnection_compensate;
+	} else { /* for CHECK_EFUSE_V2 or no efuse */
+		if (phy_parameter->efuse_usb_dc_dis)
+			val = (s32)(phy_parameter->efuse_usb_dc_dis +
+				    phy_parameter->disconnection_compensate);
+		else
+			val = (s32)((data & dc_disconnect_mask) +
+				    phy_parameter->disconnection_compensate);
+	}
+
+	if (val > dc_disconnect_mask)
+		val = dc_disconnect_mask;
+	else if (val < 0)
+		val = 0;
+
+	ret = (data & (~dc_disconnect_mask)) | (val & dc_disconnect_mask);
+
+	return ret;
+}
+
+/* updated disconnect level at page1 */
+static void update_dc_disconnect_level_at_page1(struct rtk_phy *rtk_phy,
+						struct phy_parameter *phy_parameter, bool update)
+{
+	struct phy_cfg *phy_cfg;
+	struct phy_data *phy_data_page;
+	struct phy_data *phy_data;
+	struct phy_reg *phy_reg;
+	u8 addr, data;
+	s32 dc_disconnect_mask;
+	int i;
+
+	phy_cfg = rtk_phy->phy_cfg;
+	phy_reg = &phy_parameter->phy_reg;
+
+	/* Set page 1 */
+	phy_data_page = phy_cfg->page1;
+	rtk_phy_set_page(phy_reg, 1);
+
+	i = page_addr_to_array_index(PAGE1_0XE2);
+	phy_data = phy_data_page + i;
+	if (!phy_data->addr) {
+		phy_data->addr = PAGE1_0XE2;
+		phy_data->data = rtk_phy_read(phy_reg, PAGE1_0XE2);
+	}
+
+	addr = phy_data->addr;
+	data = phy_data->data;
+	dc_disconnect_mask = phy_cfg->dc_disconnect_mask;
+
+	if (update)
+		data = __updated_dc_disconnect_level_page1_0xe2(phy_cfg, phy_parameter, data);
+	else
+		data = (data & ~dc_disconnect_mask) | DEFAULT_DC_DISCONNECTION_VALUE;
+
+	if (rtk_phy_write(phy_reg, addr, data))
+		dev_err(rtk_phy->dev,
+			"%s: Error to set page1 parameter addr=0x%x value=0x%x\n",
+			__func__, addr, data);
+}
+
+static void update_dc_disconnect_level(struct rtk_phy *rtk_phy,
+				       struct phy_parameter *phy_parameter, bool update)
+{
+	struct phy_cfg *phy_cfg = rtk_phy->phy_cfg;
+
+	if (phy_cfg->usb_dc_disconnect_at_page0)
+		update_dc_disconnect_level_at_page0(rtk_phy, phy_parameter, update);
+	else
+		update_dc_disconnect_level_at_page1(rtk_phy, phy_parameter, update);
+}
+
+static u8 __update_dc_driving_page0_0xe4(struct phy_cfg *phy_cfg,
+					 struct phy_parameter *phy_parameter, u8 data)
+{
+	s32 driving_level_compensate = phy_parameter->driving_level_compensate;
+	s32 dc_driving_mask = phy_cfg->dc_driving_mask;
+	s32 val;
+	u8 ret;
+
+	if (phy_cfg->check_efuse_version == CHECK_EFUSE_V1) {
+		val = (s32)(data & dc_driving_mask) + driving_level_compensate
+			    + phy_parameter->efuse_usb_dc_cal;
+	} else { /* for CHECK_EFUSE_V2 or no efuse */
+		if (phy_parameter->efuse_usb_dc_cal)
+			val = (s32)((phy_parameter->efuse_usb_dc_cal & dc_driving_mask)
+				    + driving_level_compensate);
+		else
+			val = (s32)(data & dc_driving_mask);
+	}
+
+	if (val > dc_driving_mask)
+		val = dc_driving_mask;
+	else if (val < 0)
+		val = 0;
+
+	ret = (data & (~dc_driving_mask)) | (val & dc_driving_mask);
+
+	return ret;
+}
+
+static void update_dc_driving_level(struct rtk_phy *rtk_phy,
+				    struct phy_parameter *phy_parameter)
+{
+	struct phy_cfg *phy_cfg;
+	struct phy_reg *phy_reg;
+
+	phy_reg = &phy_parameter->phy_reg;
+	phy_cfg = rtk_phy->phy_cfg;
+	if (!phy_cfg->page0[4].addr) {
+		rtk_phy_set_page(phy_reg, 0);
+		phy_cfg->page0[4].addr = PAGE0_0XE4;
+		phy_cfg->page0[4].data = rtk_phy_read(phy_reg, PAGE0_0XE4);
+	}
+
+	if (phy_parameter->driving_level != DEFAULT_DC_DRIVING_VALUE) {
+		u32 dc_driving_mask;
+		u8 driving_level;
+		u8 data;
+
+		data = phy_cfg->page0[4].data;
+		dc_driving_mask = phy_cfg->dc_driving_mask;
+		driving_level = data & dc_driving_mask;
+
+		dev_dbg(rtk_phy->dev, "%s driving_level=%d => dts driving_level=%d\n",
+			__func__, driving_level, phy_parameter->driving_level);
+
+		phy_cfg->page0[4].data = (data & (~dc_driving_mask)) |
+			    (phy_parameter->driving_level & dc_driving_mask);
+	}
+
+	phy_cfg->page0[4].data = __update_dc_driving_page0_0xe4(phy_cfg,
+								phy_parameter,
+								phy_cfg->page0[4].data);
+}
+
+static void update_hs_clk_select(struct rtk_phy *rtk_phy,
+				 struct phy_parameter *phy_parameter)
+{
+	struct phy_cfg *phy_cfg;
+	struct phy_reg *phy_reg;
+
+	phy_cfg = rtk_phy->phy_cfg;
+	phy_reg = &phy_parameter->phy_reg;
+
+	if (phy_parameter->inverse_hstx_sync_clock) {
+		if (!phy_cfg->page0[6].addr) {
+			rtk_phy_set_page(phy_reg, 0);
+			phy_cfg->page0[6].addr = PAGE0_0XE6;
+			phy_cfg->page0[6].data = rtk_phy_read(phy_reg, PAGE0_0XE6);
+		}
+
+		phy_cfg->page0[6].data = phy_cfg->page0[6].data | HS_CLK_SELECT;
+	}
+}
+
+static void do_rtk_phy_toggle(struct rtk_phy *rtk_phy,
+			      int index, bool connect)
+{
+	struct phy_parameter *phy_parameter;
+	struct phy_cfg *phy_cfg;
+	struct phy_reg *phy_reg;
+	struct phy_data *phy_data_page;
+	u8 addr, data;
+	int i;
+
+	phy_cfg = rtk_phy->phy_cfg;
+	phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+	phy_reg = &phy_parameter->phy_reg;
+
+	if (!phy_cfg->do_toggle)
+		goto out;
+
+	if (phy_cfg->is_double_sensitivity_mode)
+		goto do_toggle_driving;
+
+	/* Set page 0 */
+	rtk_phy_set_page(phy_reg, 0);
+
+	addr = PAGE0_0XE7;
+	data = rtk_phy_read(phy_reg, addr);
+
+	if (connect)
+		rtk_phy_write(phy_reg, addr, data & (~SENSITIVITY_CTRL));
+	else
+		rtk_phy_write(phy_reg, addr, data | (SENSITIVITY_CTRL));
+
+do_toggle_driving:
+
+	if (!phy_cfg->do_toggle_driving)
+		goto do_toggle;
+
+	/* Page 0 addr 0xE4 driving capability */
+
+	/* Set page 0 */
+	phy_data_page = phy_cfg->page0;
+	rtk_phy_set_page(phy_reg, 0);
+
+	i = page_addr_to_array_index(PAGE0_0XE4);
+	addr = phy_data_page[i].addr;
+	data = phy_data_page[i].data;
+
+	if (connect) {
+		rtk_phy_write(phy_reg, addr, data);
+	} else {
+		u8 value;
+		s32 tmp;
+		s32 driving_updated =
+			    phy_cfg->driving_updated_for_dev_dis;
+		s32 dc_driving_mask = phy_cfg->dc_driving_mask;
+
+		tmp = (s32)(data & dc_driving_mask) + driving_updated;
+
+		if (tmp > dc_driving_mask)
+			tmp = dc_driving_mask;
+		else if (tmp < 0)
+			tmp = 0;
+
+		value = (data & (~dc_driving_mask)) | (tmp & dc_driving_mask);
+
+		rtk_phy_write(phy_reg, addr, value);
+	}
+
+do_toggle:
+	/* restore dc disconnect level before toggle */
+	update_dc_disconnect_level(rtk_phy, phy_parameter, false);
+
+	/* Set page 1 */
+	rtk_phy_set_page(phy_reg, 1);
+
+	addr = PAGE1_0XE0;
+	data = rtk_phy_read(phy_reg, addr);
+
+	rtk_phy_write(phy_reg, addr, data &
+		      (~ENABLE_AUTO_SENSITIVITY_CALIBRATION));
+	mdelay(1);
+	rtk_phy_write(phy_reg, addr, data |
+		      (ENABLE_AUTO_SENSITIVITY_CALIBRATION));
+
+	/* update dc disconnect level after toggle */
+	update_dc_disconnect_level(rtk_phy, phy_parameter, true);
+
+out:
+	return;
+}
+
+static int do_rtk_phy_init(struct rtk_phy *rtk_phy, int index)
+{
+	struct phy_parameter *phy_parameter;
+	struct phy_cfg *phy_cfg;
+	struct phy_data *phy_data_page;
+	struct phy_reg *phy_reg;
+	int i;
+
+	phy_cfg = rtk_phy->phy_cfg;
+	phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+	phy_reg = &phy_parameter->phy_reg;
+
+	if (phy_cfg->use_default_parameter) {
+		dev_dbg(rtk_phy->dev, "%s phy#%d use default parameter\n",
+			__func__, index);
+		goto do_toggle;
+	}
+
+	/* Set page 0 */
+	phy_data_page = phy_cfg->page0;
+	rtk_phy_set_page(phy_reg, 0);
+
+	for (i = 0; i < phy_cfg->page0_size; i++) {
+		struct phy_data *phy_data = phy_data_page + i;
+		u8 addr = phy_data->addr;
+		u8 data = phy_data->data;
+
+		if (!addr)
+			continue;
+
+		if (rtk_phy_write(phy_reg, addr, data)) {
+			dev_err(rtk_phy->dev,
+				"%s: Error to set page0 parameter addr=0x%x value=0x%x\n",
+				__func__, addr, data);
+			return -EINVAL;
+		}
+	}
+
+	/* Set page 1 */
+	phy_data_page = phy_cfg->page1;
+	rtk_phy_set_page(phy_reg, 1);
+
+	for (i = 0; i < phy_cfg->page1_size; i++) {
+		struct phy_data *phy_data = phy_data_page + i;
+		u8 addr = phy_data->addr;
+		u8 data = phy_data->data;
+
+		if (!addr)
+			continue;
+
+		if (rtk_phy_write(phy_reg, addr, data)) {
+			dev_err(rtk_phy->dev,
+				"%s: Error to set page1 parameter addr=0x%x value=0x%x\n",
+				__func__, addr, data);
+			return -EINVAL;
+		}
+	}
+
+	if (phy_cfg->page2_size == 0)
+		goto do_toggle;
+
+	/* Set page 2 */
+	phy_data_page = phy_cfg->page2;
+	rtk_phy_set_page(phy_reg, 2);
+
+	for (i = 0; i < phy_cfg->page2_size; i++) {
+		struct phy_data *phy_data = phy_data_page + i;
+		u8 addr = phy_data->addr;
+		u8 data = phy_data->data;
+
+		if (!addr)
+			continue;
+
+		if (rtk_phy_write(phy_reg, addr, data)) {
+			dev_err(rtk_phy->dev,
+				"%s: Error to set page2 parameter addr=0x%x value=0x%x\n",
+				__func__, addr, data);
+			return -EINVAL;
+		}
+	}
+
+do_toggle:
+	do_rtk_phy_toggle(rtk_phy, index, false);
+
+	return 0;
+}
+
+static int rtk_phy_init(struct phy *phy)
+{
+	struct rtk_phy *rtk_phy = phy_get_drvdata(phy);
+	unsigned long phy_init_time = jiffies;
+	int i, ret = 0;
+
+	if (!rtk_phy)
+		return -EINVAL;
+
+	for (i = 0; i < rtk_phy->num_phy; i++)
+		ret = do_rtk_phy_init(rtk_phy, i);
+
+	dev_dbg(rtk_phy->dev, "Initialized RTK USB 2.0 PHY (take %dms)\n",
+		jiffies_to_msecs(jiffies - phy_init_time));
+	return ret;
+}
+
+static int rtk_phy_exit(struct phy *phy)
+{
+	return 0;
+}
+
+static const struct phy_ops ops = {
+	.init		= rtk_phy_init,
+	.exit		= rtk_phy_exit,
+	.owner		= THIS_MODULE,
+};
+
+static void rtk_phy_toggle(struct usb_phy *usb2_phy, bool connect, int port)
+{
+	int index = port;
+	struct rtk_phy *rtk_phy = NULL;
+
+	rtk_phy = dev_get_drvdata(usb2_phy->dev);
+
+	if (index > rtk_phy->num_phy) {
+		dev_err(rtk_phy->dev, "%s: The port=%d is not in usb phy (num_phy=%d)\n",
+			__func__, index, rtk_phy->num_phy);
+		return;
+	}
+
+	do_rtk_phy_toggle(rtk_phy, index, connect);
+}
+
+static int rtk_phy_notify_port_status(struct usb_phy *x, int port,
+				      u16 portstatus, u16 portchange)
+{
+	bool connect = false;
+
+	pr_debug("%s port=%d portstatus=0x%x portchange=0x%x\n",
+		 __func__, port, (int)portstatus, (int)portchange);
+	if (portstatus & USB_PORT_STAT_CONNECTION)
+		connect = true;
+
+	if (portchange & USB_PORT_STAT_C_CONNECTION)
+		rtk_phy_toggle(x, connect, port);
+
+	return 0;
+}
+
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *create_phy_debug_root(void)
+{
+	struct dentry *phy_debug_root;
+
+	phy_debug_root = debugfs_lookup("phy", usb_debug_root);
+	if (!phy_debug_root)
+		phy_debug_root = debugfs_create_dir("phy", usb_debug_root);
+
+	return phy_debug_root;
+}
+
+static int rtk_usb2_parameter_show(struct seq_file *s, void *unused)
+{
+	struct rtk_phy *rtk_phy = s->private;
+	struct phy_cfg *phy_cfg;
+	int i, index;
+
+	phy_cfg = rtk_phy->phy_cfg;
+
+	seq_puts(s, "Property:\n");
+	seq_printf(s, "  check_efuse: %s\n",
+		   phy_cfg->check_efuse ? "Enable" : "Disable");
+	seq_printf(s, "  check_efuse_version: %d\n",
+		   phy_cfg->check_efuse_version);
+	seq_printf(s, "  efuse_dc_driving_rate: %d\n",
+		   phy_cfg->efuse_dc_driving_rate);
+	seq_printf(s, "  dc_driving_mask: 0x%x\n",
+		   phy_cfg->dc_driving_mask);
+	seq_printf(s, "  efuse_dc_disconnect_rate: %d\n",
+		   phy_cfg->efuse_dc_disconnect_rate);
+	seq_printf(s, "  dc_disconnect_mask: 0x%x\n",
+		   phy_cfg->dc_disconnect_mask);
+	seq_printf(s, "  usb_dc_disconnect_at_page0: %s\n",
+		   phy_cfg->usb_dc_disconnect_at_page0 ? "true" : "false");
+	seq_printf(s, "  do_toggle: %s\n",
+		   phy_cfg->do_toggle ? "Enable" : "Disable");
+	seq_printf(s, "  do_toggle_driving: %s\n",
+		   phy_cfg->do_toggle_driving ? "Enable" : "Disable");
+	seq_printf(s, "  driving_updated_for_dev_dis: 0x%x\n",
+		   phy_cfg->driving_updated_for_dev_dis);
+	seq_printf(s, "  use_default_parameter: %s\n",
+		   phy_cfg->use_default_parameter ? "Enable" : "Disable");
+	seq_printf(s, "  is_double_sensitivity_mode: %s\n",
+		   phy_cfg->is_double_sensitivity_mode ? "Enable" : "Disable");
+
+	for (index = 0; index < rtk_phy->num_phy; index++) {
+		struct phy_parameter *phy_parameter;
+		struct phy_reg *phy_reg;
+		struct phy_data *phy_data_page;
+
+		phy_parameter =  &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+		phy_reg = &phy_parameter->phy_reg;
+
+		seq_printf(s, "PHY %d:\n", index);
+
+		seq_puts(s, "Page 0:\n");
+		/* Set page 0 */
+		phy_data_page = phy_cfg->page0;
+		rtk_phy_set_page(phy_reg, 0);
+
+		for (i = 0; i < phy_cfg->page0_size; i++) {
+			struct phy_data *phy_data = phy_data_page + i;
+			u8 addr = array_index_to_page_addr(i);
+			u8 data = phy_data->data;
+			u8 value = rtk_phy_read(phy_reg, addr);
+
+			if (phy_data->addr)
+				seq_printf(s, "  Page 0: addr=0x%x data=0x%02x ==> read value=0x%02x\n",
+					   addr, data, value);
+			else
+				seq_printf(s, "  Page 0: addr=0x%x data=none ==> read value=0x%02x\n",
+					   addr, value);
+		}
+
+		seq_puts(s, "Page 1:\n");
+		/* Set page 1 */
+		phy_data_page = phy_cfg->page1;
+		rtk_phy_set_page(phy_reg, 1);
+
+		for (i = 0; i < phy_cfg->page1_size; i++) {
+			struct phy_data *phy_data = phy_data_page + i;
+			u8 addr = array_index_to_page_addr(i);
+			u8 data = phy_data->data;
+			u8 value = rtk_phy_read(phy_reg, addr);
+
+			if (phy_data->addr)
+				seq_printf(s, "  Page 1: addr=0x%x data=0x%02x ==> read value=0x%02x\n",
+					   addr, data, value);
+			else
+				seq_printf(s, "  Page 1: addr=0x%x data=none ==> read value=0x%02x\n",
+					   addr, value);
+		}
+
+		if (phy_cfg->page2_size == 0)
+			goto out;
+
+		seq_puts(s, "Page 2:\n");
+		/* Set page 2 */
+		phy_data_page = phy_cfg->page2;
+		rtk_phy_set_page(phy_reg, 2);
+
+		for (i = 0; i < phy_cfg->page2_size; i++) {
+			struct phy_data *phy_data = phy_data_page + i;
+			u8 addr = array_index_to_page_addr(i);
+			u8 data = phy_data->data;
+			u8 value = rtk_phy_read(phy_reg, addr);
+
+			if (phy_data->addr)
+				seq_printf(s, "  Page 2: addr=0x%x data=0x%02x ==> read value=0x%02x\n",
+					   addr, data, value);
+			else
+				seq_printf(s, "  Page 2: addr=0x%x data=none ==> read value=0x%02x\n",
+					   addr, value);
+		}
+
+out:
+		seq_puts(s, "PHY Property:\n");
+		seq_printf(s, "  efuse_usb_dc_cal: %d\n",
+			   (int)phy_parameter->efuse_usb_dc_cal);
+		seq_printf(s, "  efuse_usb_dc_dis: %d\n",
+			   (int)phy_parameter->efuse_usb_dc_dis);
+		seq_printf(s, "  inverse_hstx_sync_clock: %s\n",
+			   phy_parameter->inverse_hstx_sync_clock ? "Enable" : "Disable");
+		seq_printf(s, "  driving_level: %d\n",
+			   phy_parameter->driving_level);
+		seq_printf(s, "  driving_level_compensate: %d\n",
+			   phy_parameter->driving_level_compensate);
+		seq_printf(s, "  disconnection_compensate: %d\n",
+			   phy_parameter->disconnection_compensate);
+	}
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(rtk_usb2_parameter);
+
+static inline void create_debug_files(struct rtk_phy *rtk_phy)
+{
+	struct dentry *phy_debug_root = NULL;
+
+	phy_debug_root = create_phy_debug_root();
+	if (!phy_debug_root)
+		return;
+
+	rtk_phy->debug_dir = debugfs_create_dir(dev_name(rtk_phy->dev),
+						phy_debug_root);
+	if (!rtk_phy->debug_dir)
+		return;
+
+	if (!debugfs_create_file("parameter", 0444, rtk_phy->debug_dir, rtk_phy,
+				 &rtk_usb2_parameter_fops))
+		goto file_error;
+
+	return;
+
+file_error:
+	debugfs_remove_recursive(rtk_phy->debug_dir);
+}
+
+static inline void remove_debug_files(struct rtk_phy *rtk_phy)
+{
+	debugfs_remove_recursive(rtk_phy->debug_dir);
+}
+#else
+static inline void create_debug_files(struct rtk_phy *rtk_phy) { }
+static inline void remove_debug_files(struct rtk_phy *rtk_phy) { }
+#endif /* CONFIG_DEBUG_FS */
+
+static int get_phy_data_by_efuse(struct rtk_phy *rtk_phy,
+				 struct phy_parameter *phy_parameter, int index)
+{
+	struct phy_cfg *phy_cfg = rtk_phy->phy_cfg;
+	u8 value = 0;
+	struct nvmem_cell *cell;
+	struct soc_device_attribute rtk_soc_groot[] = {
+		    { .family = "Realtek Groot",},
+		    { /* empty */ } };
+
+	if (!phy_cfg->check_efuse)
+		goto out;
+
+	/* Read efuse for usb dc cal */
+	cell = nvmem_cell_get(rtk_phy->dev, "usb-dc-cal");
+	if (IS_ERR(cell)) {
+		dev_dbg(rtk_phy->dev, "%s no usb-dc-cal: %ld\n",
+			__func__, PTR_ERR(cell));
+	} else {
+		unsigned char *buf;
+		size_t buf_size;
+
+		buf = nvmem_cell_read(cell, &buf_size);
+		if (!IS_ERR(buf)) {
+			value = buf[0] & phy_cfg->dc_driving_mask;
+			kfree(buf);
+		}
+		nvmem_cell_put(cell);
+	}
+
+	if (phy_cfg->check_efuse_version == CHECK_EFUSE_V1) {
+		int rate = phy_cfg->efuse_dc_driving_rate;
+
+		if (value <= EFUS_USB_DC_CAL_MAX)
+			phy_parameter->efuse_usb_dc_cal = (int8_t)(value * rate);
+		else
+			phy_parameter->efuse_usb_dc_cal = -(int8_t)
+				    ((EFUS_USB_DC_CAL_MAX & value) * rate);
+
+		if (soc_device_match(rtk_soc_groot)) {
+			dev_dbg(rtk_phy->dev, "For groot IC we need a workaround to adjust efuse_usb_dc_cal\n");
+
+			/* We don't multiple dc_cal_rate=2 for positive dc cal compensate */
+			if (value <= EFUS_USB_DC_CAL_MAX)
+				phy_parameter->efuse_usb_dc_cal = (int8_t)(value);
+
+			/* We set max dc cal compensate is 0x8 if otp is 0x7 */
+			if (value == 0x7)
+				phy_parameter->efuse_usb_dc_cal = (int8_t)(value + 1);
+		}
+	} else { /* for CHECK_EFUSE_V2 */
+		phy_parameter->efuse_usb_dc_cal = value & phy_cfg->dc_driving_mask;
+	}
+
+	/* Read efuse for usb dc disconnect level */
+	value = 0;
+	cell = nvmem_cell_get(rtk_phy->dev, "usb-dc-dis");
+	if (IS_ERR(cell)) {
+		dev_dbg(rtk_phy->dev, "%s no usb-dc-dis: %ld\n",
+			__func__, PTR_ERR(cell));
+	} else {
+		unsigned char *buf;
+		size_t buf_size;
+
+		buf = nvmem_cell_read(cell, &buf_size);
+		if (!IS_ERR(buf)) {
+			value = buf[0] & phy_cfg->dc_disconnect_mask;
+			kfree(buf);
+		}
+		nvmem_cell_put(cell);
+	}
+
+	if (phy_cfg->check_efuse_version == CHECK_EFUSE_V1) {
+		int rate = phy_cfg->efuse_dc_disconnect_rate;
+
+		if (value <= EFUS_USB_DC_DIS_MAX)
+			phy_parameter->efuse_usb_dc_dis = (int8_t)(value * rate);
+		else
+			phy_parameter->efuse_usb_dc_dis = -(int8_t)
+				    ((EFUS_USB_DC_DIS_MAX & value) * rate);
+	} else { /* for CHECK_EFUSE_V2 */
+		phy_parameter->efuse_usb_dc_dis = value & phy_cfg->dc_disconnect_mask;
+	}
+
+out:
+	return 0;
+}
+
+static int parse_phy_data(struct rtk_phy *rtk_phy)
+{
+	struct device *dev = rtk_phy->dev;
+	struct device_node *np = dev->of_node;
+	struct phy_parameter *phy_parameter;
+	int ret = 0;
+	int index;
+
+	rtk_phy->phy_parameter = devm_kzalloc(dev, sizeof(struct phy_parameter) *
+						rtk_phy->num_phy, GFP_KERNEL);
+	if (!rtk_phy->phy_parameter)
+		return -ENOMEM;
+
+	for (index = 0; index < rtk_phy->num_phy; index++) {
+		phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+
+		phy_parameter->phy_reg.reg_wrap_vstatus = of_iomap(np, 0);
+		phy_parameter->phy_reg.reg_gusb2phyacc0 = of_iomap(np, 1) + index;
+		phy_parameter->phy_reg.vstatus_index = index;
+
+		if (of_property_read_bool(np, "realtek,inverse-hstx-sync-clock"))
+			phy_parameter->inverse_hstx_sync_clock = true;
+		else
+			phy_parameter->inverse_hstx_sync_clock = false;
+
+		if (of_property_read_u32_index(np, "realtek,driving-level",
+					       index, &phy_parameter->driving_level))
+			phy_parameter->driving_level = DEFAULT_DC_DRIVING_VALUE;
+
+		if (of_property_read_u32_index(np, "realtek,driving-level-compensate",
+					       index, &phy_parameter->driving_level_compensate))
+			phy_parameter->driving_level_compensate = 0;
+
+		if (of_property_read_u32_index(np, "realtek,disconnection-compensate",
+					       index, &phy_parameter->disconnection_compensate))
+			phy_parameter->disconnection_compensate = 0;
+
+		get_phy_data_by_efuse(rtk_phy, phy_parameter, index);
+
+		update_dc_driving_level(rtk_phy, phy_parameter);
+
+		update_hs_clk_select(rtk_phy, phy_parameter);
+	}
+
+	return ret;
+}
+
+static int rtk_usb2phy_probe(struct platform_device *pdev)
+{
+	struct rtk_phy *rtk_phy;
+	struct device *dev = &pdev->dev;
+	struct phy *generic_phy;
+	struct phy_provider *phy_provider;
+	const struct phy_cfg *phy_cfg;
+	int ret = 0;
+
+	phy_cfg = of_device_get_match_data(dev);
+	if (!phy_cfg) {
+		dev_err(dev, "phy config are not assigned!\n");
+		return -EINVAL;
+	}
+
+	rtk_phy = devm_kzalloc(dev, sizeof(*rtk_phy), GFP_KERNEL);
+	if (!rtk_phy)
+		return -ENOMEM;
+
+	rtk_phy->dev			= &pdev->dev;
+	rtk_phy->phy.dev		= rtk_phy->dev;
+	rtk_phy->phy.label		= "rtk-usb2phy";
+	rtk_phy->phy.notify_port_status = rtk_phy_notify_port_status;
+
+	rtk_phy->phy_cfg = devm_kzalloc(dev, sizeof(*phy_cfg), GFP_KERNEL);
+
+	memcpy(rtk_phy->phy_cfg, phy_cfg, sizeof(*phy_cfg));
+
+	rtk_phy->num_phy = phy_cfg->num_phy;
+
+	ret = parse_phy_data(rtk_phy);
+	if (ret)
+		goto err;
+
+	platform_set_drvdata(pdev, rtk_phy);
+
+	generic_phy = devm_phy_create(rtk_phy->dev, NULL, &ops);
+	if (IS_ERR(generic_phy))
+		return PTR_ERR(generic_phy);
+
+	phy_set_drvdata(generic_phy, rtk_phy);
+
+	phy_provider = devm_of_phy_provider_register(rtk_phy->dev,
+						     of_phy_simple_xlate);
+	if (IS_ERR(phy_provider))
+		return PTR_ERR(phy_provider);
+
+	ret = usb_add_phy_dev(&rtk_phy->phy);
+	if (ret)
+		goto err;
+
+	create_debug_files(rtk_phy);
+
+err:
+	return ret;
+}
+
+static void rtk_usb2phy_remove(struct platform_device *pdev)
+{
+	struct rtk_phy *rtk_phy = platform_get_drvdata(pdev);
+
+	remove_debug_files(rtk_phy);
+
+	usb_remove_phy(&rtk_phy->phy);
+}
+
+static const struct phy_cfg rtd1295_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [0] = {0xe0, 0x90},
+		   [3] = {0xe3, 0x3a},
+		   [4] = {0xe4, 0x68},
+		   [6] = {0xe6, 0x91},
+		  [13] = {0xf5, 0x81},
+		  [15] = {0xf7, 0x02}, },
+	.page1_size = 8,
+	.page1 = { /* default parameter */ },
+	.page2_size = 0,
+	.page2 = { /* no parameter */ },
+	.num_phy = 1,
+	.check_efuse = false,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = 1,
+	.dc_driving_mask = 0xf,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = true,
+	.do_toggle = true,
+	.do_toggle_driving = false,
+	.driving_updated_for_dev_dis = 0xf,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = false,
+};
+
+static const struct phy_cfg rtd1395_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [4] = {0xe4, 0xac},
+		  [13] = {0xf5, 0x00},
+		  [15] = {0xf7, 0x02}, },
+	.page1_size = 8,
+	.page1 = { /* default parameter */ },
+	.page2_size = 0,
+	.page2 = { /* no parameter */ },
+	.num_phy = 1,
+	.check_efuse = false,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = 1,
+	.dc_driving_mask = 0xf,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = true,
+	.do_toggle = true,
+	.do_toggle_driving = false,
+	.driving_updated_for_dev_dis = 0xf,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = false,
+};
+
+static const struct phy_cfg rtd1395_phy_cfg_2port = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [4] = {0xe4, 0xac},
+		  [13] = {0xf5, 0x00},
+		  [15] = {0xf7, 0x02}, },
+	.page1_size = 8,
+	.page1 = { /* default parameter */ },
+	.page2_size = 0,
+	.page2 = { /* no parameter */ },
+	.num_phy = 2,
+	.check_efuse = false,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = 1,
+	.dc_driving_mask = 0xf,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = true,
+	.do_toggle = true,
+	.do_toggle_driving = false,
+	.driving_updated_for_dev_dis = 0xf,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = false,
+};
+
+static const struct phy_cfg rtd1619_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [4] = {0xe4, 0x68}, },
+	.page1_size = 8,
+	.page1 = { /* default parameter */ },
+	.page2_size = 0,
+	.page2 = { /* no parameter */ },
+	.num_phy = 1,
+	.check_efuse = true,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = 1,
+	.dc_driving_mask = 0xf,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = true,
+	.do_toggle = true,
+	.do_toggle_driving = false,
+	.driving_updated_for_dev_dis = 0xf,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = false,
+};
+
+static const struct phy_cfg rtd1319_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [0] = {0xe0, 0x18},
+		   [4] = {0xe4, 0x6a},
+		   [7] = {0xe7, 0x71},
+		  [13] = {0xf5, 0x15},
+		  [15] = {0xf7, 0x32}, },
+	.page1_size = 8,
+	.page1 = { [3] = {0xe3, 0x44}, },
+	.page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+	.page2 = { [0] = {0xe0, 0x01}, },
+	.num_phy = 1,
+	.check_efuse = true,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = 1,
+	.dc_driving_mask = 0xf,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = true,
+	.do_toggle = true,
+	.do_toggle_driving = true,
+	.driving_updated_for_dev_dis = 0xf,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = true,
+};
+
+static const struct phy_cfg rtd1312c_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [0] = {0xe0, 0x14},
+		   [4] = {0xe4, 0x67},
+		   [5] = {0xe5, 0x55}, },
+	.page1_size = 8,
+	.page1 = { [3] = {0xe3, 0x23},
+		   [6] = {0xe6, 0x58}, },
+	.page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+	.page2 = { /* default parameter */ },
+	.num_phy = 1,
+	.check_efuse = true,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = 1,
+	.dc_driving_mask = 0xf,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = true,
+	.do_toggle = true,
+	.do_toggle_driving = true,
+	.driving_updated_for_dev_dis = 0xf,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = true,
+};
+
+static const struct phy_cfg rtd1619b_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [0] = {0xe0, 0xa3},
+		   [4] = {0xe4, 0x88},
+		   [5] = {0xe5, 0x4f},
+		   [6] = {0xe6, 0x02}, },
+	.page1_size = 8,
+	.page1 = { [3] = {0xe3, 0x64}, },
+	.page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+	.page2 = { [7] = {0xe7, 0x45}, },
+	.num_phy = 1,
+	.check_efuse = true,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = EFUS_USB_DC_CAL_RATE,
+	.dc_driving_mask = 0x1f,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = false,
+	.do_toggle = true,
+	.do_toggle_driving = true,
+	.driving_updated_for_dev_dis = 0x8,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = true,
+};
+
+static const struct phy_cfg rtd1319d_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [0] = {0xe0, 0xa3},
+		   [4] = {0xe4, 0x8e},
+		   [5] = {0xe5, 0x4f},
+		   [6] = {0xe6, 0x02}, },
+	.page1_size = MAX_USB_PHY_PAGE1_DATA_SIZE,
+	.page1 = { [14] = {0xf5, 0x1}, },
+	.page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+	.page2 = { [7] = {0xe7, 0x44}, },
+	.check_efuse = true,
+	.num_phy = 1,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = EFUS_USB_DC_CAL_RATE,
+	.dc_driving_mask = 0x1f,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = false,
+	.do_toggle = true,
+	.do_toggle_driving = false,
+	.driving_updated_for_dev_dis = 0x8,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = true,
+};
+
+static const struct phy_cfg rtd1315e_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [0] = {0xe0, 0xa3},
+		   [4] = {0xe4, 0x8c},
+		   [5] = {0xe5, 0x4f},
+		   [6] = {0xe6, 0x02}, },
+	.page1_size = MAX_USB_PHY_PAGE1_DATA_SIZE,
+	.page1 = { [3] = {0xe3, 0x7f},
+		  [14] = {0xf5, 0x01}, },
+	.page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+	.page2 = { [7] = {0xe7, 0x44}, },
+	.num_phy = 1,
+	.check_efuse = true,
+	.check_efuse_version = CHECK_EFUSE_V2,
+	.efuse_dc_driving_rate = EFUS_USB_DC_CAL_RATE,
+	.dc_driving_mask = 0x1f,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = false,
+	.do_toggle = true,
+	.do_toggle_driving = false,
+	.driving_updated_for_dev_dis = 0x8,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = true,
+};
+
+static const struct of_device_id usbphy_rtk_dt_match[] = {
+	{ .compatible = "realtek,rtd1295-usb2phy", .data = &rtd1295_phy_cfg },
+	{ .compatible = "realtek,rtd1312c-usb2phy", .data = &rtd1312c_phy_cfg },
+	{ .compatible = "realtek,rtd1315e-usb2phy", .data = &rtd1315e_phy_cfg },
+	{ .compatible = "realtek,rtd1319-usb2phy", .data = &rtd1319_phy_cfg },
+	{ .compatible = "realtek,rtd1319d-usb2phy", .data = &rtd1319d_phy_cfg },
+	{ .compatible = "realtek,rtd1395-usb2phy", .data = &rtd1395_phy_cfg },
+	{ .compatible = "realtek,rtd1395-usb2phy-2port", .data = &rtd1395_phy_cfg_2port },
+	{ .compatible = "realtek,rtd1619-usb2phy", .data = &rtd1619_phy_cfg },
+	{ .compatible = "realtek,rtd1619b-usb2phy", .data = &rtd1619b_phy_cfg },
+	{},
+};
+MODULE_DEVICE_TABLE(of, usbphy_rtk_dt_match);
+
+static struct platform_driver rtk_usb2phy_driver = {
+	.probe		= rtk_usb2phy_probe,
+	.remove_new	= rtk_usb2phy_remove,
+	.driver		= {
+		.name	= "rtk-usb2phy",
+		.of_match_table = usbphy_rtk_dt_match,
+	},
+};
+
+module_platform_driver(rtk_usb2phy_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform: rtk-usb2phy");
+MODULE_AUTHOR("Stanley Chang <[e-mail]>");
+MODULE_DESCRIPTION("Realtek usb 2.0 phy driver");

drivers/phy/realtek/phy-rtk-usb3.c

···
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  phy-rtk-usb3.c RTK usb3.0 phy driver
+ *
+ * copyright (c) 2023 realtek semiconductor corporation
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/uaccess.h>
+#include <linux/debugfs.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/regmap.h>
+#include <linux/sys_soc.h>
+#include <linux/mfd/syscon.h>
+#include <linux/phy/phy.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/usb/phy.h>
+
+#define USB_MDIO_CTRL_PHY_BUSY BIT(7)
+#define USB_MDIO_CTRL_PHY_WRITE BIT(0)
+#define USB_MDIO_CTRL_PHY_ADDR_SHIFT 8
+#define USB_MDIO_CTRL_PHY_DATA_SHIFT 16
+
+#define MAX_USB_PHY_DATA_SIZE 0x30
+#define PHY_ADDR_0X09 0x09
+#define PHY_ADDR_0X0B 0x0b
+#define PHY_ADDR_0X0D 0x0d
+#define PHY_ADDR_0X10 0x10
+#define PHY_ADDR_0X1F 0x1f
+#define PHY_ADDR_0X20 0x20
+#define PHY_ADDR_0X21 0x21
+#define PHY_ADDR_0X30 0x30
+
+#define REG_0X09_FORCE_CALIBRATION BIT(9)
+#define REG_0X0B_RX_OFFSET_RANGE_MASK 0xc
+#define REG_0X0D_RX_DEBUG_TEST_EN BIT(6)
+#define REG_0X10_DEBUG_MODE_SETTING 0x3c0
+#define REG_0X10_DEBUG_MODE_SETTING_MASK 0x3f8
+#define REG_0X1F_RX_OFFSET_CODE_MASK 0x1e
+
+#define USB_U3_TX_LFPS_SWING_TRIM_SHIFT 4
+#define USB_U3_TX_LFPS_SWING_TRIM_MASK 0xf
+#define AMPLITUDE_CONTROL_COARSE_MASK 0xff
+#define AMPLITUDE_CONTROL_FINE_MASK 0xffff
+#define AMPLITUDE_CONTROL_COARSE_DEFAULT 0xff
+#define AMPLITUDE_CONTROL_FINE_DEFAULT 0xffff
+
+#define PHY_ADDR_MAP_ARRAY_INDEX(addr) (addr)
+#define ARRAY_INDEX_MAP_PHY_ADDR(index) (index)
+
+struct phy_reg {
+	void __iomem *reg_mdio_ctl;
+};
+
+struct phy_data {
+	u8 addr;
+	u16 data;
+};
+
+struct phy_cfg {
+	int param_size;
+	struct phy_data param[MAX_USB_PHY_DATA_SIZE];
+
+	bool check_efuse;
+	bool do_toggle;
+	bool do_toggle_once;
+	bool use_default_parameter;
+	bool check_rx_front_end_offset;
+};
+
+struct phy_parameter {
+	struct phy_reg phy_reg;
+
+	/* Get from efuse */
+	u8 efuse_usb_u3_tx_lfps_swing_trim;
+
+	/* Get from dts */
+	u32 amplitude_control_coarse;
+	u32 amplitude_control_fine;
+};
+
+struct rtk_phy {
+	struct usb_phy phy;
+	struct device *dev;
+
+	struct phy_cfg *phy_cfg;
+	int num_phy;
+	struct phy_parameter *phy_parameter;
+
+	struct dentry *debug_dir;
+};
+
+#define PHY_IO_TIMEOUT_USEC		(50000)
+#define PHY_IO_DELAY_US			(100)
+
+static inline int utmi_wait_register(void __iomem *reg, u32 mask, u32 result)
+{
+	int ret;
+	unsigned int val;
+
+	ret = read_poll_timeout(readl, val, ((val & mask) == result),
+				PHY_IO_DELAY_US, PHY_IO_TIMEOUT_USEC, false, reg);
+	if (ret) {
+		pr_err("%s can't program USB phy\n", __func__);
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static int rtk_phy3_wait_vbusy(struct phy_reg *phy_reg)
+{
+	return utmi_wait_register(phy_reg->reg_mdio_ctl, USB_MDIO_CTRL_PHY_BUSY, 0);
+}
+
+static u16 rtk_phy_read(struct phy_reg *phy_reg, char addr)
+{
+	unsigned int tmp;
+	u32 value;
+
+	tmp = (addr << USB_MDIO_CTRL_PHY_ADDR_SHIFT);
+
+	writel(tmp, phy_reg->reg_mdio_ctl);
+
+	rtk_phy3_wait_vbusy(phy_reg);
+
+	value = readl(phy_reg->reg_mdio_ctl);
+	value = value >> USB_MDIO_CTRL_PHY_DATA_SHIFT;
+
+	return (u16)value;
+}
+
+static int rtk_phy_write(struct phy_reg *phy_reg, char addr, u16 data)
+{
+	unsigned int val;
+
+	val = USB_MDIO_CTRL_PHY_WRITE |
+		    (addr << USB_MDIO_CTRL_PHY_ADDR_SHIFT) |
+		    (data << USB_MDIO_CTRL_PHY_DATA_SHIFT);
+
+	writel(val, phy_reg->reg_mdio_ctl);
+
+	rtk_phy3_wait_vbusy(phy_reg);
+
+	return 0;
+}
+
+static void do_rtk_usb3_phy_toggle(struct rtk_phy *rtk_phy, int index, bool connect)
+{
+	struct phy_cfg *phy_cfg = rtk_phy->phy_cfg;
+	struct phy_reg *phy_reg;
+	struct phy_parameter *phy_parameter;
+	struct phy_data *phy_data;
+	u8 addr;
+	u16 data;
+	int i;
+
+	phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+	phy_reg = &phy_parameter->phy_reg;
+
+	if (!phy_cfg->do_toggle)
+		return;
+
+	i = PHY_ADDR_MAP_ARRAY_INDEX(PHY_ADDR_0X09);
+	phy_data = phy_cfg->param + i;
+	addr = phy_data->addr;
+	data = phy_data->data;
+
+	if (!addr && !data) {
+		addr = PHY_ADDR_0X09;
+		data = rtk_phy_read(phy_reg, addr);
+		phy_data->addr = addr;
+		phy_data->data = data;
+	}
+
+	rtk_phy_write(phy_reg, addr, data & (~REG_0X09_FORCE_CALIBRATION));
+	mdelay(1);
+	rtk_phy_write(phy_reg, addr, data | REG_0X09_FORCE_CALIBRATION);
+}
+
+static int do_rtk_phy_init(struct rtk_phy *rtk_phy, int index)
+{
+	struct phy_cfg *phy_cfg;
+	struct phy_reg *phy_reg;
+	struct phy_parameter *phy_parameter;
+	int i = 0;
+
+	phy_cfg = rtk_phy->phy_cfg;
+	phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+	phy_reg = &phy_parameter->phy_reg;
+
+	if (phy_cfg->use_default_parameter)
+		goto do_toggle;
+
+	for (i = 0; i < phy_cfg->param_size; i++) {
+		struct phy_data *phy_data = phy_cfg->param + i;
+		u8 addr = phy_data->addr;
+		u16 data = phy_data->data;
+
+		if (!addr && !data)
+			continue;
+
+		rtk_phy_write(phy_reg, addr, data);
+	}
+
+do_toggle:
+	if (phy_cfg->do_toggle_once)
+		phy_cfg->do_toggle = true;
+
+	do_rtk_usb3_phy_toggle(rtk_phy, index, false);
+
+	if (phy_cfg->do_toggle_once) {
+		u16 check_value = 0;
+		int count = 10;
+		u16 value_0x0d, value_0x10;
+
+		/* Enable Debug mode by set 0x0D and 0x10 */
+		value_0x0d = rtk_phy_read(phy_reg, PHY_ADDR_0X0D);
+		value_0x10 = rtk_phy_read(phy_reg, PHY_ADDR_0X10);
+
+		rtk_phy_write(phy_reg, PHY_ADDR_0X0D,
+			      value_0x0d | REG_0X0D_RX_DEBUG_TEST_EN);
+		rtk_phy_write(phy_reg, PHY_ADDR_0X10,
+			      (value_0x10 & ~REG_0X10_DEBUG_MODE_SETTING_MASK) |
+			      REG_0X10_DEBUG_MODE_SETTING);
+
+		check_value = rtk_phy_read(phy_reg, PHY_ADDR_0X30);
+
+		while (!(check_value & BIT(15))) {
+			check_value = rtk_phy_read(phy_reg, PHY_ADDR_0X30);
+			mdelay(1);
+			if (count-- < 0)
+				break;
+		}
+
+		if (!(check_value & BIT(15)))
+			dev_info(rtk_phy->dev, "toggle fail addr=0x%02x, data=0x%04x\n",
+				 PHY_ADDR_0X30, check_value);
+
+		/* Disable Debug mode by set 0x0D and 0x10 to default*/
+		rtk_phy_write(phy_reg, PHY_ADDR_0X0D, value_0x0d);
+		rtk_phy_write(phy_reg, PHY_ADDR_0X10, value_0x10);
+
+		phy_cfg->do_toggle = false;
+	}
+
+	if (phy_cfg->check_rx_front_end_offset) {
+		u16 rx_offset_code, rx_offset_range;
+		u16 code_mask = REG_0X1F_RX_OFFSET_CODE_MASK;
+		u16 range_mask = REG_0X0B_RX_OFFSET_RANGE_MASK;
+		bool do_update = false;
+
+		rx_offset_code = rtk_phy_read(phy_reg, PHY_ADDR_0X1F);
+		if (((rx_offset_code & code_mask) == 0x0) ||
+		    ((rx_offset_code & code_mask) == code_mask))
+			do_update = true;
+
+		rx_offset_range = rtk_phy_read(phy_reg, PHY_ADDR_0X0B);
+		if (((rx_offset_range & range_mask) == range_mask) && do_update) {
+			dev_warn(rtk_phy->dev, "Don't update rx_offset_range (rx_offset_code=0x%x, rx_offset_range=0x%x)\n",
+				 rx_offset_code, rx_offset_range);
+			do_update = false;
+		}
+
+		if (do_update) {
+			u16 tmp1, tmp2;
+
+			tmp1 = rx_offset_range & (~range_mask);
+			tmp2 = rx_offset_range & range_mask;
+			tmp2 += (1 << 2);
+			rx_offset_range = tmp1 | (tmp2 & range_mask);
+			rtk_phy_write(phy_reg, PHY_ADDR_0X0B, rx_offset_range);
+			goto do_toggle;
+		}
+	}
+
+	return 0;
+}
+
+static int rtk_phy_init(struct phy *phy)
+{
+	struct rtk_phy *rtk_phy = phy_get_drvdata(phy);
+	int ret = 0;
+	int i;
+	unsigned long phy_init_time = jiffies;
+
+	for (i = 0; i < rtk_phy->num_phy; i++)
+		ret = do_rtk_phy_init(rtk_phy, i);
+
+	dev_dbg(rtk_phy->dev, "Initialized RTK USB 3.0 PHY (take %dms)\n",
+		jiffies_to_msecs(jiffies - phy_init_time));
+
+	return ret;
+}
+
+static int rtk_phy_exit(struct phy *phy)
+{
+	return 0;
+}
+
+static const struct phy_ops ops = {
+	.init		= rtk_phy_init,
+	.exit		= rtk_phy_exit,
+	.owner		= THIS_MODULE,
+};
+
+static void rtk_phy_toggle(struct usb_phy *usb3_phy, bool connect, int port)
+{
+	int index = port;
+	struct rtk_phy *rtk_phy = NULL;
+
+	rtk_phy = dev_get_drvdata(usb3_phy->dev);
+
+	if (index > rtk_phy->num_phy) {
+		dev_err(rtk_phy->dev, "%s: The port=%d is not in usb phy (num_phy=%d)\n",
+			__func__, index, rtk_phy->num_phy);
+		return;
+	}
+
+	do_rtk_usb3_phy_toggle(rtk_phy, index, connect);
+}
+
+static int rtk_phy_notify_port_status(struct usb_phy *x, int port,
+				      u16 portstatus, u16 portchange)
+{
+	bool connect = false;
+
+	pr_debug("%s port=%d portstatus=0x%x portchange=0x%x\n",
+		 __func__, port, (int)portstatus, (int)portchange);
+	if (portstatus & USB_PORT_STAT_CONNECTION)
+		connect = true;
+
+	if (portchange & USB_PORT_STAT_C_CONNECTION)
+		rtk_phy_toggle(x, connect, port);
+
+	return 0;
+}
+
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *create_phy_debug_root(void)
+{
+	struct dentry *phy_debug_root;
+
+	phy_debug_root = debugfs_lookup("phy", usb_debug_root);
+	if (!phy_debug_root)
+		phy_debug_root = debugfs_create_dir("phy", usb_debug_root);
+
+	return phy_debug_root;
+}
+
+static int rtk_usb3_parameter_show(struct seq_file *s, void *unused)
+{
+	struct rtk_phy *rtk_phy = s->private;
+	struct phy_cfg *phy_cfg;
+	int i, index;
+
+	phy_cfg = rtk_phy->phy_cfg;
+
+	seq_puts(s, "Property:\n");
+	seq_printf(s, "  check_efuse: %s\n",
+		   phy_cfg->check_efuse ? "Enable" : "Disable");
+	seq_printf(s, "  do_toggle: %s\n",
+		   phy_cfg->do_toggle ? "Enable" : "Disable");
+	seq_printf(s, "  do_toggle_once: %s\n",
+		   phy_cfg->do_toggle_once ? "Enable" : "Disable");
+	seq_printf(s, "  use_default_parameter: %s\n",
+		   phy_cfg->use_default_parameter ? "Enable" : "Disable");
+
+	for (index = 0; index < rtk_phy->num_phy; index++) {
+		struct phy_reg *phy_reg;
+		struct phy_parameter *phy_parameter;
+
+		phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+		phy_reg = &phy_parameter->phy_reg;
+
+		seq_printf(s, "PHY %d:\n", index);
+
+		for (i = 0; i < phy_cfg->param_size; i++) {
+			struct phy_data *phy_data = phy_cfg->param + i;
+			u8 addr = ARRAY_INDEX_MAP_PHY_ADDR(i);
+			u16 data = phy_data->data;
+
+			if (!phy_data->addr && !data)
+				seq_printf(s, "  addr = 0x%02x, data = none   ==> read value = 0x%04x\n",
+					   addr, rtk_phy_read(phy_reg, addr));
+			else
+				seq_printf(s, "  addr = 0x%02x, data = 0x%04x ==> read value = 0x%04x\n",
+					   addr, data, rtk_phy_read(phy_reg, addr));
+		}
+
+		seq_puts(s, "PHY Property:\n");
+		seq_printf(s, "  efuse_usb_u3_tx_lfps_swing_trim: 0x%x\n",
+			   (int)phy_parameter->efuse_usb_u3_tx_lfps_swing_trim);
+		seq_printf(s, "  amplitude_control_coarse: 0x%x\n",
+			   (int)phy_parameter->amplitude_control_coarse);
+		seq_printf(s, "  amplitude_control_fine: 0x%x\n",
+			   (int)phy_parameter->amplitude_control_fine);
+	}
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(rtk_usb3_parameter);
+
+static inline void create_debug_files(struct rtk_phy *rtk_phy)
+{
+	struct dentry *phy_debug_root = NULL;
+
+	phy_debug_root = create_phy_debug_root();
+
+	if (!phy_debug_root)
+		return;
+
+	rtk_phy->debug_dir = debugfs_create_dir(dev_name(rtk_phy->dev), phy_debug_root);
+	if (!rtk_phy->debug_dir)
+		return;
+
+	if (!debugfs_create_file("parameter", 0444, rtk_phy->debug_dir, rtk_phy,
+				 &rtk_usb3_parameter_fops))
+		goto file_error;
+
+	return;
+
+file_error:
+	debugfs_remove_recursive(rtk_phy->debug_dir);
+}
+
+static inline void remove_debug_files(struct rtk_phy *rtk_phy)
+{
+	debugfs_remove_recursive(rtk_phy->debug_dir);
+}
+#else
+static inline void create_debug_files(struct rtk_phy *rtk_phy) { }
+static inline void remove_debug_files(struct rtk_phy *rtk_phy) { }
+#endif /* CONFIG_DEBUG_FS */
+
+static int get_phy_data_by_efuse(struct rtk_phy *rtk_phy,
+				 struct phy_parameter *phy_parameter, int index)
+{
+	struct phy_cfg *phy_cfg = rtk_phy->phy_cfg;
+	u8 value = 0;
+	struct nvmem_cell *cell;
+
+	if (!phy_cfg->check_efuse)
+		goto out;
+
+	cell = nvmem_cell_get(rtk_phy->dev, "usb_u3_tx_lfps_swing_trim");
+	if (IS_ERR(cell)) {
+		dev_dbg(rtk_phy->dev, "%s no usb_u3_tx_lfps_swing_trim: %ld\n",
+			__func__, PTR_ERR(cell));
+	} else {
+		unsigned char *buf;
+		size_t buf_size;
+
+		buf = nvmem_cell_read(cell, &buf_size);
+		if (!IS_ERR(buf)) {
+			value = buf[0] & USB_U3_TX_LFPS_SWING_TRIM_MASK;
+			kfree(buf);
+		}
+		nvmem_cell_put(cell);
+	}
+
+	if (value > 0 && value < 0x8)
+		phy_parameter->efuse_usb_u3_tx_lfps_swing_trim = 0x8;
+	else
+		phy_parameter->efuse_usb_u3_tx_lfps_swing_trim = (u8)value;
+
+out:
+	return 0;
+}
+
+static void update_amplitude_control_value(struct rtk_phy *rtk_phy,
+					   struct phy_parameter *phy_parameter)
+{
+	struct phy_cfg *phy_cfg;
+	struct phy_reg *phy_reg;
+
+	phy_reg = &phy_parameter->phy_reg;
+	phy_cfg = rtk_phy->phy_cfg;
+
+	if (phy_parameter->amplitude_control_coarse != AMPLITUDE_CONTROL_COARSE_DEFAULT) {
+		u16 val_mask = AMPLITUDE_CONTROL_COARSE_MASK;
+		u16 data;
+
+		if (!phy_cfg->param[PHY_ADDR_0X20].addr && !phy_cfg->param[PHY_ADDR_0X20].data) {
+			phy_cfg->param[PHY_ADDR_0X20].addr = PHY_ADDR_0X20;
+			data = rtk_phy_read(phy_reg, PHY_ADDR_0X20);
+		} else {
+			data = phy_cfg->param[PHY_ADDR_0X20].data;
+		}
+
+		data &= (~val_mask);
+		data |= (phy_parameter->amplitude_control_coarse & val_mask);
+
+		phy_cfg->param[PHY_ADDR_0X20].data = data;
+	}
+
+	if (phy_parameter->efuse_usb_u3_tx_lfps_swing_trim) {
+		u8 efuse_val = phy_parameter->efuse_usb_u3_tx_lfps_swing_trim;
+		u16 val_mask = USB_U3_TX_LFPS_SWING_TRIM_MASK;
+		int val_shift = USB_U3_TX_LFPS_SWING_TRIM_SHIFT;
+		u16 data;
+
+		if (!phy_cfg->param[PHY_ADDR_0X20].addr && !phy_cfg->param[PHY_ADDR_0X20].data) {
+			phy_cfg->param[PHY_ADDR_0X20].addr = PHY_ADDR_0X20;
+			data = rtk_phy_read(phy_reg, PHY_ADDR_0X20);
+		} else {
+			data = phy_cfg->param[PHY_ADDR_0X20].data;
+		}
+
+		data &= ~(val_mask << val_shift);
+		data |= ((efuse_val & val_mask) << val_shift);
+
+		phy_cfg->param[PHY_ADDR_0X20].data = data;
+	}
+
+	if (phy_parameter->amplitude_control_fine != AMPLITUDE_CONTROL_FINE_DEFAULT) {
+		u16 val_mask = AMPLITUDE_CONTROL_FINE_MASK;
+
+		if (!phy_cfg->param[PHY_ADDR_0X21].addr && !phy_cfg->param[PHY_ADDR_0X21].data)
+			phy_cfg->param[PHY_ADDR_0X21].addr = PHY_ADDR_0X21;
+
+		phy_cfg->param[PHY_ADDR_0X21].data =
+			    phy_parameter->amplitude_control_fine & val_mask;
+	}
+}
+
+static int parse_phy_data(struct rtk_phy *rtk_phy)
+{
+	struct device *dev = rtk_phy->dev;
+	struct phy_parameter *phy_parameter;
+	int ret = 0;
+	int index;
+
+	rtk_phy->phy_parameter = devm_kzalloc(dev, sizeof(struct phy_parameter) *
+					      rtk_phy->num_phy, GFP_KERNEL);
+	if (!rtk_phy->phy_parameter)
+		return -ENOMEM;
+
+	for (index = 0; index < rtk_phy->num_phy; index++) {
+		phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+
+		phy_parameter->phy_reg.reg_mdio_ctl = of_iomap(dev->of_node, 0) + index;
+
+		/* Amplitude control address 0x20 bit 0 to bit 7 */
+		if (of_property_read_u32(dev->of_node, "realtek,amplitude-control-coarse-tuning",
+					 &phy_parameter->amplitude_control_coarse))
+			phy_parameter->amplitude_control_coarse = AMPLITUDE_CONTROL_COARSE_DEFAULT;
+
+		/* Amplitude control address 0x21 bit 0 to bit 16 */
+		if (of_property_read_u32(dev->of_node, "realtek,amplitude-control-fine-tuning",
+					 &phy_parameter->amplitude_control_fine))
+			phy_parameter->amplitude_control_fine = AMPLITUDE_CONTROL_FINE_DEFAULT;
+
+		get_phy_data_by_efuse(rtk_phy, phy_parameter, index);
+
+		update_amplitude_control_value(rtk_phy, phy_parameter);
+	}
+
+	return ret;
+}
+
+static int rtk_usb3phy_probe(struct platform_device *pdev)
+{
+	struct rtk_phy *rtk_phy;
+	struct device *dev = &pdev->dev;
+	struct phy *generic_phy;
+	struct phy_provider *phy_provider;
+	const struct phy_cfg *phy_cfg;
+	int ret;
+
+	phy_cfg = of_device_get_match_data(dev);
+	if (!phy_cfg) {
+		dev_err(dev, "phy config are not assigned!\n");
+		return -EINVAL;
+	}
+
+	rtk_phy = devm_kzalloc(dev, sizeof(*rtk_phy), GFP_KERNEL);
+	if (!rtk_phy)
+		return -ENOMEM;
+
+	rtk_phy->dev			= &pdev->dev;
+	rtk_phy->phy.dev		= rtk_phy->dev;
+	rtk_phy->phy.label		= "rtk-usb3phy";
+	rtk_phy->phy.notify_port_status = rtk_phy_notify_port_status;
+
+	rtk_phy->phy_cfg = devm_kzalloc(dev, sizeof(*phy_cfg), GFP_KERNEL);
+
+	memcpy(rtk_phy->phy_cfg, phy_cfg, sizeof(*phy_cfg));
+
+	rtk_phy->num_phy = 1;
+
+	ret = parse_phy_data(rtk_phy);
+	if (ret)
+		goto err;
+
+	platform_set_drvdata(pdev, rtk_phy);
+
+	generic_phy = devm_phy_create(rtk_phy->dev, NULL, &ops);
+	if (IS_ERR(generic_phy))
+		return PTR_ERR(generic_phy);
+
+	phy_set_drvdata(generic_phy, rtk_phy);
+
+	phy_provider = devm_of_phy_provider_register(rtk_phy->dev, of_phy_simple_xlate);
+	if (IS_ERR(phy_provider))
+		return PTR_ERR(phy_provider);
+
+	ret = usb_add_phy_dev(&rtk_phy->phy);
+	if (ret)
+		goto err;
+
+	create_debug_files(rtk_phy);
+
+err:
+	return ret;
+}
+
+static void rtk_usb3phy_remove(struct platform_device *pdev)
+{
+	struct rtk_phy *rtk_phy = platform_get_drvdata(pdev);
+
+	remove_debug_files(rtk_phy);
+
+	usb_remove_phy(&rtk_phy->phy);
+}
+
+static const struct phy_cfg rtd1295_phy_cfg = {
+	.param_size = MAX_USB_PHY_DATA_SIZE,
+	.param = {  [0] = {0x01, 0x4008},  [1] = {0x01, 0xe046},
+		    [2] = {0x02, 0x6046},  [3] = {0x03, 0x2779},
+		    [4] = {0x04, 0x72f5},  [5] = {0x05, 0x2ad3},
+		    [6] = {0x06, 0x000e},  [7] = {0x07, 0x2e00},
+		    [8] = {0x08, 0x3591},  [9] = {0x09, 0x525c},
+		   [10] = {0x0a, 0xa600}, [11] = {0x0b, 0xa904},
+		   [12] = {0x0c, 0xc000}, [13] = {0x0d, 0xef1c},
+		   [14] = {0x0e, 0x2000}, [15] = {0x0f, 0x0000},
+		   [16] = {0x10, 0x000c}, [17] = {0x11, 0x4c00},
+		   [18] = {0x12, 0xfc00}, [19] = {0x13, 0x0c81},
+		   [20] = {0x14, 0xde01}, [21] = {0x15, 0x0000},
+		   [22] = {0x16, 0x0000}, [23] = {0x17, 0x0000},
+		   [24] = {0x18, 0x0000}, [25] = {0x19, 0x4004},
+		   [26] = {0x1a, 0x1260}, [27] = {0x1b, 0xff00},
+		   [28] = {0x1c, 0xcb00}, [29] = {0x1d, 0xa03f},
+		   [30] = {0x1e, 0xc2e0}, [31] = {0x1f, 0x2807},
+		   [32] = {0x20, 0x947a}, [33] = {0x21, 0x88aa},
+		   [34] = {0x22, 0x0057}, [35] = {0x23, 0xab66},
+		   [36] = {0x24, 0x0800}, [37] = {0x25, 0x0000},
+		   [38] = {0x26, 0x040a}, [39] = {0x27, 0x01d6},
+		   [40] = {0x28, 0xf8c2}, [41] = {0x29, 0x3080},
+		   [42] = {0x2a, 0x3082}, [43] = {0x2b, 0x2078},
+		   [44] = {0x2c, 0xffff}, [45] = {0x2d, 0xffff},
+		   [46] = {0x2e, 0x0000}, [47] = {0x2f, 0x0040}, },
+	.check_efuse = false,
+	.do_toggle = true,
+	.do_toggle_once = false,
+	.use_default_parameter = false,
+	.check_rx_front_end_offset = false,
+};
+
+static const struct phy_cfg rtd1619_phy_cfg = {
+	.param_size = MAX_USB_PHY_DATA_SIZE,
+	.param = {  [8] = {0x08, 0x3591},
+		   [38] = {0x26, 0x840b},
+		   [40] = {0x28, 0xf842}, },
+	.check_efuse = false,
+	.do_toggle = true,
+	.do_toggle_once = false,
+	.use_default_parameter = false,
+	.check_rx_front_end_offset = false,
+};
+
+static const struct phy_cfg rtd1319_phy_cfg = {
+	.param_size = MAX_USB_PHY_DATA_SIZE,
+	.param = {  [1] = {0x01, 0xac86},
+		    [6] = {0x06, 0x0003},
+		    [9] = {0x09, 0x924c},
+		   [10] = {0x0a, 0xa608},
+		   [11] = {0x0b, 0xb905},
+		   [14] = {0x0e, 0x2010},
+		   [32] = {0x20, 0x705a},
+		   [33] = {0x21, 0xf645},
+		   [34] = {0x22, 0x0013},
+		   [35] = {0x23, 0xcb66},
+		   [41] = {0x29, 0xff00}, },
+	.check_efuse = true,
+	.do_toggle = true,
+	.do_toggle_once = false,
+	.use_default_parameter = false,
+	.check_rx_front_end_offset = false,
+};
+
+static const struct phy_cfg rtd1619b_phy_cfg = {
+	.param_size = MAX_USB_PHY_DATA_SIZE,
+	.param = {  [1] = {0x01, 0xac8c},
+		    [6] = {0x06, 0x0017},
+		    [9] = {0x09, 0x724c},
+		   [10] = {0x0a, 0xb610},
+		   [11] = {0x0b, 0xb90d},
+		   [13] = {0x0d, 0xef2a},
+		   [15] = {0x0f, 0x9050},
+		   [16] = {0x10, 0x000c},
+		   [32] = {0x20, 0x70ff},
+		   [34] = {0x22, 0x0013},
+		   [35] = {0x23, 0xdb66},
+		   [38] = {0x26, 0x8609},
+		   [41] = {0x29, 0xff13},
+		   [42] = {0x2a, 0x3070}, },
+	.check_efuse = true,
+	.do_toggle = false,
+	.do_toggle_once = true,
+	.use_default_parameter = false,
+	.check_rx_front_end_offset = false,
+};
+
+static const  struct phy_cfg rtd1319d_phy_cfg = {
+	.param_size = MAX_USB_PHY_DATA_SIZE,
+	.param = {  [1] = {0x01, 0xac89},
+		    [4] = {0x04, 0xf2f5},
+		    [6] = {0x06, 0x0017},
+		    [9] = {0x09, 0x424c},
+		   [10] = {0x0a, 0x9610},
+		   [11] = {0x0b, 0x9901},
+		   [12] = {0x0c, 0xf000},
+		   [13] = {0x0d, 0xef2a},
+		   [14] = {0x0e, 0x1000},
+		   [15] = {0x0f, 0x9050},
+		   [32] = {0x20, 0x7077},
+		   [35] = {0x23, 0x0b62},
+		   [37] = {0x25, 0x10ec},
+		   [42] = {0x2a, 0x3070}, },
+	.check_efuse = true,
+	.do_toggle = false,
+	.do_toggle_once = true,
+	.use_default_parameter = false,
+	.check_rx_front_end_offset = true,
+};
+
+static const struct of_device_id usbphy_rtk_dt_match[] = {
+	{ .compatible = "realtek,rtd1295-usb3phy", .data = &rtd1295_phy_cfg },
+	{ .compatible = "realtek,rtd1319-usb3phy", .data = &rtd1319_phy_cfg },
+	{ .compatible = "realtek,rtd1319d-usb3phy", .data = &rtd1319d_phy_cfg },
+	{ .compatible = "realtek,rtd1619-usb3phy", .data = &rtd1619_phy_cfg },
+	{ .compatible = "realtek,rtd1619b-usb3phy", .data = &rtd1619b_phy_cfg },
+	{},
+};
+MODULE_DEVICE_TABLE(of, usbphy_rtk_dt_match);
+
+static struct platform_driver rtk_usb3phy_driver = {
+	.probe		= rtk_usb3phy_probe,
+	.remove_new	= rtk_usb3phy_remove,
+	.driver		= {
+		.name	= "rtk-usb3phy",
+		.of_match_table = usbphy_rtk_dt_match,
+	},
+};
+
+module_platform_driver(rtk_usb3phy_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform: rtk-usb3phy");
+MODULE_AUTHOR("Stanley Chang <[e-mail]>");
+MODULE_DESCRIPTION("Realtek usb 3.0 phy driver");

drivers/platform/chrome/cros_ec_typec.c

···
 	return ret;
 }
 
+/**
+ * cros_typec_get_cable_vdo() - Get Cable VDO of the connected cable
+ * @port: Type-C port data
+ * @svid: Standard or Vendor ID to match
+ *
+ * Returns the Cable VDO if match is found and returns 0 if match is not found.
+ */
+static int cros_typec_get_cable_vdo(struct cros_typec_port *port, u16 svid)
+{
+	struct list_head *head = &port->plug_mode_list;
+	struct cros_typec_altmode_node *node;
+	u32 ret = 0;
+
+	list_for_each_entry(node, head, list) {
+		if (node->amode->svid == svid)
+			return node->amode->vdo;
+	}
+
+	return ret;
+}
+
 /*
  * Spoof the VDOs that were likely communicated by the partner for TBT alt
  * mode.
···
 
 	/* Cable Discover Mode VDO */
 	data.cable_mode = TBT_MODE;
+
+	data.cable_mode |= cros_typec_get_cable_vdo(port, USB_TYPEC_TBT_SID);
+
 	data.cable_mode |= TBT_SET_CABLE_SPEED(pd_ctrl->cable_speed);
 
 	if (pd_ctrl->control_flags & USB_PD_CTRL_OPTICAL_CABLE)
···
 	/* Cable Type */
 	if (pd_ctrl->control_flags & USB_PD_CTRL_OPTICAL_CABLE)
 		data.eudo |= EUDO_CABLE_TYPE_OPTICAL << EUDO_CABLE_TYPE_SHIFT;
-	else if (pd_ctrl->control_flags & USB_PD_CTRL_ACTIVE_CABLE)
+	else if (cros_typec_get_cable_vdo(port, USB_TYPEC_TBT_SID) & TBT_CABLE_RETIMER)
 		data.eudo |= EUDO_CABLE_TYPE_RE_TIMER << EUDO_CABLE_TYPE_SHIFT;
+	else if (pd_ctrl->control_flags & USB_PD_CTRL_ACTIVE_CABLE)
+		data.eudo |= EUDO_CABLE_TYPE_RE_DRIVER << EUDO_CABLE_TYPE_SHIFT;
 
 	data.active_link_training = !!(pd_ctrl->control_flags &
 				       USB_PD_CTRL_ACTIVE_LINK_UNIDIR);

drivers/thunderbolt/acpi.c

···
 #include "tb.h"
 
 static acpi_status tb_acpi_add_link(acpi_handle handle, u32 level, void *data,
-				    void **return_value)
+				    void **ret)
 {
 	struct acpi_device *adev = acpi_fetch_acpi_dev(handle);
 	struct fwnode_handle *fwnode;
···
 		if (link) {
 			dev_dbg(&nhi->pdev->dev, "created link from %s\n",
 				dev_name(&pdev->dev));
+			*(bool *)ret = true;
 		} else {
 			dev_warn(&nhi->pdev->dev, "device link creation from %s failed\n",
 				 dev_name(&pdev->dev));
···
  * Goes over ACPI namespace finding tunneled ports that reference to
  * @nhi ACPI node. For each reference a device link is added. The link
  * is automatically removed by the driver core.
+ *
+ * Returns %true if at least one link was created.
  */
-void tb_acpi_add_links(struct tb_nhi *nhi)
+bool tb_acpi_add_links(struct tb_nhi *nhi)
 {
 	acpi_status status;
+	bool ret = false;
 
 	if (!has_acpi_companion(&nhi->pdev->dev))
-		return;
+		return false;
 
 	/*
 	 * Find all devices that have usb4-host-controller interface
 	 * property that references to this NHI.
 	 */
 	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, 32,
-				     tb_acpi_add_link, NULL, nhi, NULL);
-	if (ACPI_FAILURE(status))
+				     tb_acpi_add_link, NULL, nhi, (void **)&ret);
+	if (ACPI_FAILURE(status)) {
 		dev_warn(&nhi->pdev->dev, "failed to enumerate tunneled ports\n");
+		return false;
+	}
+
+	return ret;
 }
 
 /**

drivers/thunderbolt/switch.c

···
 
 static int tb_switch_get_generation(struct tb_switch *sw)
 {
-	switch (sw->config.device_id) {
-	case PCI_DEVICE_ID_INTEL_LIGHT_RIDGE:
-	case PCI_DEVICE_ID_INTEL_EAGLE_RIDGE:
-	case PCI_DEVICE_ID_INTEL_LIGHT_PEAK:
-	case PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_2C:
-	case PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C:
-	case PCI_DEVICE_ID_INTEL_PORT_RIDGE:
-	case PCI_DEVICE_ID_INTEL_REDWOOD_RIDGE_2C_BRIDGE:
-	case PCI_DEVICE_ID_INTEL_REDWOOD_RIDGE_4C_BRIDGE:
-		return 1;
+	if (tb_switch_is_usb4(sw))
+		return 4;
 
-	case PCI_DEVICE_ID_INTEL_WIN_RIDGE_2C_BRIDGE:
-	case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_2C_BRIDGE:
-	case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_BRIDGE:
-		return 2;
+	if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) {
+		switch (sw->config.device_id) {
+		case PCI_DEVICE_ID_INTEL_LIGHT_RIDGE:
+		case PCI_DEVICE_ID_INTEL_EAGLE_RIDGE:
+		case PCI_DEVICE_ID_INTEL_LIGHT_PEAK:
+		case PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_2C:
+		case PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C:
+		case PCI_DEVICE_ID_INTEL_PORT_RIDGE:
+		case PCI_DEVICE_ID_INTEL_REDWOOD_RIDGE_2C_BRIDGE:
+		case PCI_DEVICE_ID_INTEL_REDWOOD_RIDGE_4C_BRIDGE:
+			return 1;
 
-	case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_LP_BRIDGE:
-	case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_BRIDGE:
-	case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_4C_BRIDGE:
-	case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_2C_BRIDGE:
-	case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_BRIDGE:
-	case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_BRIDGE:
-	case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_BRIDGE:
-	case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_BRIDGE:
-	case PCI_DEVICE_ID_INTEL_ICL_NHI0:
-	case PCI_DEVICE_ID_INTEL_ICL_NHI1:
-		return 3;
+		case PCI_DEVICE_ID_INTEL_WIN_RIDGE_2C_BRIDGE:
+		case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_2C_BRIDGE:
+		case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_BRIDGE:
+			return 2;
 
-	default:
-		if (tb_switch_is_usb4(sw))
-			return 4;
-
-		/*
-		 * For unknown switches assume generation to be 1 to be
-		 * on the safe side.
-		 */
-		tb_sw_warn(sw, "unsupported switch device id %#x\n",
-			   sw->config.device_id);
-		return 1;
+		case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_LP_BRIDGE:
+		case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_BRIDGE:
+		case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_4C_BRIDGE:
+		case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_2C_BRIDGE:
+		case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_BRIDGE:
+		case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_BRIDGE:
+		case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_BRIDGE:
+		case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_BRIDGE:
+		case PCI_DEVICE_ID_INTEL_ICL_NHI0:
+		case PCI_DEVICE_ID_INTEL_ICL_NHI1:
+			return 3;
+		}
 	}
+
+	/*
+	 * For unknown switches assume generation to be 1 to be on the
+	 * safe side.
+	 */
+	tb_sw_warn(sw, "unsupported switch device id %#x\n",
+		   sw->config.device_id);
+	return 1;
 }
 
 static bool tb_switch_exceeds_max_depth(const struct tb_switch *sw, int depth)

drivers/thunderbolt/tb.c

···
  * downstream ports and the NHI so that the device core will make sure
  * NHI is resumed first before the rest.
  */
-static void tb_apple_add_links(struct tb_nhi *nhi)
+static bool tb_apple_add_links(struct tb_nhi *nhi)
 {
 	struct pci_dev *upstream, *pdev;
+	bool ret;
 
 	if (!x86_apple_machine)
-		return;
+		return false;
 
 	switch (nhi->pdev->device) {
 	case PCI_DEVICE_ID_INTEL_LIGHT_RIDGE:
···
 	case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_NHI:
 		break;
 	default:
-		return;
+		return false;
 	}
 
 	upstream = pci_upstream_bridge(nhi->pdev);
 	while (upstream) {
 		if (!pci_is_pcie(upstream))
-			return;
+			return false;
 		if (pci_pcie_type(upstream) == PCI_EXP_TYPE_UPSTREAM)
 			break;
 		upstream = pci_upstream_bridge(upstream);
 	}
 
 	if (!upstream)
-		return;
+		return false;
 
 	/*
 	 * For each hotplug downstream port, create add device link
 	 * back to NHI so that PCIe tunnels can be re-established after
 	 * sleep.
 	 */
+	ret = false;
 	for_each_pci_bridge(pdev, upstream->subordinate) {
 		const struct device_link *link;
 
···
 		if (link) {
 			dev_dbg(&nhi->pdev->dev, "created link from %s\n",
 				dev_name(&pdev->dev));
+			ret = true;
 		} else {
 			dev_warn(&nhi->pdev->dev, "device link creation from %s failed\n",
 				 dev_name(&pdev->dev));
 		}
 	}
+
+	return ret;
 }
 
 struct tb *tb_probe(struct tb_nhi *nhi)
···
 
 	tb_dbg(tb, "using software connection manager\n");
 
-	tb_apple_add_links(nhi);
-	tb_acpi_add_links(nhi);
+	/*
+	 * Device links are needed to make sure we establish tunnels
+	 * before the PCIe/USB stack is resumed so complain here if we
+	 * found them missing.
+	 */
+	if (!tb_apple_add_links(nhi) && !tb_acpi_add_links(nhi))
+		tb_warn(tb, "device links to tunneled native ports are missing!\n");
 
 	return tb;
 }

drivers/thunderbolt/tb.h

···
 void tb_check_quirks(struct tb_switch *sw);
 
 #ifdef CONFIG_ACPI
-void tb_acpi_add_links(struct tb_nhi *nhi);
+bool tb_acpi_add_links(struct tb_nhi *nhi);
 
 bool tb_acpi_is_native(void);
 bool tb_acpi_may_tunnel_usb3(void);
···
 int tb_acpi_power_on_retimers(struct tb_port *port);
 int tb_acpi_power_off_retimers(struct tb_port *port);
 #else
-static inline void tb_acpi_add_links(struct tb_nhi *nhi) { }
+static inline bool tb_acpi_add_links(struct tb_nhi *nhi) { return false; }
 
 static inline bool tb_acpi_is_native(void) { return true; }
 static inline bool tb_acpi_may_tunnel_usb3(void) { return true; }

drivers/thunderbolt/tmu.c

···
 	[TB_SWITCH_TMU_MODE_MEDRES_ENHANCED_UNI] = 16,
 };
 
-const struct {
+static const struct {
 	unsigned int freq_meas_window;
 	unsigned int avg_const;
 	unsigned int delta_avg_const;

drivers/usb/cdns3/cdns3-gadget.c

···
 #include <linux/module.h>
 #include <linux/dmapool.h>
 #include <linux/iopoll.h>
+#include <linux/property.h>
 
 #include "core.h"
 #include "gadget-export.h"

drivers/usb/cdns3/cdns3-plat.c

···
 #include <linux/module.h>
 #include <linux/irq.h>
 #include <linux/kernel.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 
···
 	cdns3_set_platform_suspend(cdns->dev, false, false);
 
 	spin_lock_irqsave(&cdns->lock, flags);
-	cdns_resume(cdns, !PMSG_IS_AUTO(msg));
+	cdns_resume(cdns);
 	cdns->in_lpm = false;
 	spin_unlock_irqrestore(&cdns->lock, flags);
+	cdns_set_active(cdns, !PMSG_IS_AUTO(msg));
 	if (cdns->wakeup_pending) {
 		cdns->wakeup_pending = false;
 		enable_irq(cdns->wakeup_irq);

drivers/usb/cdns3/cdns3-starfive.c

···
 	return 0;
 }
 
-static int cdns_starfive_remove(struct platform_device *pdev)
+static void cdns_starfive_remove(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct cdns_starfive *data = dev_get_drvdata(dev);
···
 	pm_runtime_put_noidle(dev);
 	cdns_clk_rst_deinit(data);
 	platform_set_drvdata(pdev, NULL);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM
···
 
 static struct platform_driver cdns_starfive_driver = {
 	.probe		= cdns_starfive_probe,
-	.remove		= cdns_starfive_remove,
+	.remove_new	= cdns_starfive_remove,
 	.driver		= {
 		.name	= "cdns3-starfive",
 		.of_match_table	= cdns_starfive_of_match,

drivers/usb/cdns3/cdns3-ti.c

···
 #include <linux/io.h>
 #include <linux/of_platform.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 
 /* USB Wrapper register offsets */
 #define USBSS_PID		0x0

drivers/usb/cdns3/cdnsp-pci.c

···
 	int ret;
 
 	spin_lock_irqsave(&cdns->lock, flags);
-	ret = cdns_resume(cdns, 1);
+	ret = cdns_resume(cdns);
 	spin_unlock_irqrestore(&cdns->lock, flags);
+	cdns_set_active(cdns, 1);
 
 	return ret;
 }

drivers/usb/cdns3/core.c

···
 #include <linux/dma-mapping.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
···
 }
 EXPORT_SYMBOL_GPL(cdns_suspend);
 
-int cdns_resume(struct cdns *cdns, u8 set_active)
+int cdns_resume(struct cdns *cdns)
 {
-	struct device *dev = cdns->dev;
 	enum usb_role real_role;
 	bool role_changed = false;
 	int ret = 0;
···
 	if (cdns->roles[cdns->role]->resume)
 		cdns->roles[cdns->role]->resume(cdns, cdns_power_is_lost(cdns));
 
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cdns_resume);
+
+void cdns_set_active(struct cdns *cdns, u8 set_active)
+{
+	struct device *dev = cdns->dev;
+
 	if (set_active) {
 		pm_runtime_disable(dev);
 		pm_runtime_set_active(dev);
 		pm_runtime_enable(dev);
 	}
 
-	return 0;
+	return;
 }
-EXPORT_SYMBOL_GPL(cdns_resume);
+EXPORT_SYMBOL_GPL(cdns_set_active);
 #endif /* CONFIG_PM_SLEEP */
 
 MODULE_AUTHOR("Peter Chen <[e-mail]>");

drivers/usb/cdns3/core.h

···
 int cdns_remove(struct cdns *cdns);
 
 #ifdef CONFIG_PM_SLEEP
-int cdns_resume(struct cdns *cdns, u8 set_active);
+int cdns_resume(struct cdns *cdns);
 int cdns_suspend(struct cdns *cdns);
+void cdns_set_active(struct cdns *cdns, u8 set_active);
 #else /* CONFIG_PM_SLEEP */
-static inline int cdns_resume(struct cdns *cdns, u8 set_active)
+static inline int cdns_resume(struct cdns *cdns)
+{ return 0; }
+static inline int cdns_set_active(struct cdns *cdns, u8 set_active)
 { return 0; }
 static inline int cdns_suspend(struct cdns *cdns)
 { return 0; }

drivers/usb/cdns3/drd.c

···
 	if (ret)
 		dev_err(cdns->dev, "timeout waiting for xhci_ready\n");
 
+	phy_set_mode(cdns->usb2_phy, PHY_MODE_USB_HOST);
 	phy_set_mode(cdns->usb3_phy, PHY_MODE_USB_HOST);
 	return ret;
 }
···
 	readl_poll_timeout_atomic(&cdns->otg_regs->state, val,
 				  !(val & OTGSTATE_HOST_STATE_MASK),
 				  1, 2000000);
+	phy_set_mode(cdns->usb2_phy, PHY_MODE_INVALID);
 	phy_set_mode(cdns->usb3_phy, PHY_MODE_INVALID);
 }
 
···
 		return ret;
 	}
 
+	phy_set_mode(cdns->usb2_phy, PHY_MODE_USB_DEVICE);
 	phy_set_mode(cdns->usb3_phy, PHY_MODE_USB_DEVICE);
 	return 0;
 }
···
 	readl_poll_timeout_atomic(&cdns->otg_regs->state, val,
 				  !(val & OTGSTATE_DEV_STATE_MASK),
 				  1, 2000000);
+	phy_set_mode(cdns->usb2_phy, PHY_MODE_INVALID);
 	phy_set_mode(cdns->usb3_phy, PHY_MODE_INVALID);
 }
 EXPORT_SYMBOL_GPL(cdns_drd_gadget_off);

drivers/usb/chipidea/ci.h

···
 	bool				id_event;
 	bool				b_sess_valid_event;
 	bool				imx28_write_fix;
+	bool				has_portsc_pec_bug;
 	bool				supports_runtime_pm;
 	bool				in_lpm;
 	bool				wakeup_int;
···
 		return -ENXIO;
 
 	ret = ci->roles[role]->start(ci);
-	if (!ret)
-		ci->role = role;
+	if (ret)
+		return ret;
+
+	ci->role = role;
+
+	if (ci->usb_phy) {
+		if (role == CI_ROLE_HOST)
+			usb_phy_set_event(ci->usb_phy, USB_EVENT_ID);
+		else
+			/* in device mode but vbus is invalid*/
+			usb_phy_set_event(ci->usb_phy, USB_EVENT_NONE);
+	}
+
 	return ret;
 }
 
···
 	ci->role = CI_ROLE_END;
 
 	ci->roles[role]->stop(ci);
+
+	if (ci->usb_phy)
+		usb_phy_set_event(ci->usb_phy, USB_EVENT_NONE);
 }
 
 static inline enum usb_role ci_role_to_usb_role(struct ci_hdrc *ci)

drivers/usb/chipidea/ci_hdrc_imx.c

···
  */
 
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
···
 
 static const struct ci_hdrc_imx_platform_flag imx7ulp_usb_data = {
 	.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+		CI_HDRC_HAS_PORTSC_PEC_MISSED |
 		CI_HDRC_PMQOS,
 };
 
 static const struct ci_hdrc_imx_platform_flag imx8ulp_usb_data = {
-	.flags = CI_HDRC_SUPPORTS_RUNTIME_PM,
+	.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+		CI_HDRC_HAS_PORTSC_PEC_MISSED,
 };
 
 static const struct of_device_id ci_hdrc_imx_dt_ids[] = {
···
 	if (of_usb_get_phy_mode(np) == USBPHY_INTERFACE_MODE_ULPI)
 		data->ulpi = 1;
 
-	of_property_read_u32(np, "samsung,picophy-pre-emp-curr-control",
-			&data->emp_curr_control);
-	of_property_read_u32(np, "samsung,picophy-dc-vol-level-adjust",
-			&data->dc_vol_level_adjust);
+	if (of_property_read_u32(np, "samsung,picophy-pre-emp-curr-control",
+			&data->emp_curr_control))
+		data->emp_curr_control = -1;
+	if (of_property_read_u32(np, "samsung,picophy-dc-vol-level-adjust",
+			&data->dc_vol_level_adjust))
+		data->dc_vol_level_adjust = -1;
+	if (of_property_read_u32(np, "fsl,picophy-rise-fall-time-adjust",
+			&data->rise_fall_time_adjust))
+		data->rise_fall_time_adjust = -1;
 
 	return data;
 }

drivers/usb/chipidea/ci_hdrc_imx.h

···
 	enum usb_dr_mode available_role; /* runtime usb dr mode */
 	int emp_curr_control;
 	int dc_vol_level_adjust;
+	int rise_fall_time_adjust;
 };
 
 int imx_usbmisc_init(struct imx_usbmisc_data *data);

drivers/usb/chipidea/ci_hdrc_tegra.c

···
 #include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/reset.h>
 

drivers/usb/chipidea/core.c

···
 		return -ENODEV;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(dev, res);
+	base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(base))
 		return PTR_ERR(base);
 
···
 		CI_HDRC_IMX28_WRITE_FIX);
 	ci->supports_runtime_pm = !!(ci->platdata->flags &
 		CI_HDRC_SUPPORTS_RUNTIME_PM);
+	ci->has_portsc_pec_bug = !!(ci->platdata->flags &
+		CI_HDRC_HAS_PORTSC_PEC_MISSED);
 	platform_set_drvdata(pdev, ci);
 
 	ret = hw_device_init(ci, base);

drivers/usb/chipidea/host.c

···
 	ehci->has_hostpc = ci->hw_bank.lpm;
 	ehci->has_tdi_phy_lpm = ci->hw_bank.lpm;
 	ehci->imx28_write_fix = ci->imx28_write_fix;
+	ehci->has_ci_pec_bug = ci->has_portsc_pec_bug;
 
 	priv = (struct ehci_ci_priv *)ehci->priv;
 	priv->reg_vbus = NULL;

drivers/usb/chipidea/udc.c

···
  */
 static struct usb_request *ep_alloc_request(struct usb_ep *ep, gfp_t gfp_flags)
 {
-	struct ci_hw_req *hwreq = NULL;
+	struct ci_hw_req *hwreq;
 
 	if (ep == NULL)
 		return NULL;
···
 	if (ci->platdata->notify_event)
 		ret = ci->platdata->notify_event(ci,
 				CI_HDRC_CONTROLLER_VBUS_EVENT);
+
+	if (ci->usb_phy) {
+		if (is_active)
+			usb_phy_set_event(ci->usb_phy, USB_EVENT_VBUS);
+		else
+			usb_phy_set_event(ci->usb_phy, USB_EVENT_NONE);
+	}
 
 	if (ci->driver)
 		ci_hdrc_gadget_connect(_gadget, is_active);
···
 		if (USBi_PCI & intr) {
 			ci->gadget.speed = hw_port_is_high_speed(ci) ?
 				USB_SPEED_HIGH : USB_SPEED_FULL;
+			if (ci->usb_phy)
+				usb_phy_set_event(ci->usb_phy,
+					USB_EVENT_ENUMERATED);
 			if (ci->suspended) {
 				if (ci->driver->resume) {
 					spin_unlock(&ci->lock);

drivers/usb/chipidea/usbmisc_imx.c

···
  */
 
 #include <linux/module.h>
-#include <linux/of_platform.h>
+#include <linux/of.h>
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/delay.h>
+#include <linux/platform_device.h>
 #include <linux/usb/otg.h>
 
 #include "ci_hdrc_imx.h"
···
 #define MX7D_USB_OTG_PHY_CFG1		0x30
 #define TXPREEMPAMPTUNE0_BIT		28
 #define TXPREEMPAMPTUNE0_MASK		(3 << 28)
+#define TXRISETUNE0_BIT			24
+#define TXRISETUNE0_MASK		(3 << 24)
 #define TXVREFTUNE0_BIT			20
 #define TXVREFTUNE0_MASK		(0xf << 20)
 
···
 			usbmisc->base + MX7D_USBNC_USB_CTRL2);
 		/* PHY tuning for signal quality */
 		reg = readl(usbmisc->base + MX7D_USB_OTG_PHY_CFG1);
-		if (data->emp_curr_control && data->emp_curr_control <=
+		if (data->emp_curr_control >= 0 &&
+			data->emp_curr_control <=
 			(TXPREEMPAMPTUNE0_MASK >> TXPREEMPAMPTUNE0_BIT)) {
 			reg &= ~TXPREEMPAMPTUNE0_MASK;
 			reg |= (data->emp_curr_control << TXPREEMPAMPTUNE0_BIT);
 		}
 
-		if (data->dc_vol_level_adjust && data->dc_vol_level_adjust <=
+		if (data->dc_vol_level_adjust >= 0 &&
+			data->dc_vol_level_adjust <=
 			(TXVREFTUNE0_MASK >> TXVREFTUNE0_BIT)) {
 			reg &= ~TXVREFTUNE0_MASK;
 			reg |= (data->dc_vol_level_adjust << TXVREFTUNE0_BIT);
+		}
+
+		if (data->rise_fall_time_adjust >= 0 &&
+			data->rise_fall_time_adjust <=
+			(TXRISETUNE0_MASK >> TXRISETUNE0_BIT)) {
+			reg &= ~TXRISETUNE0_MASK;
+			reg |= (data->rise_fall_time_adjust << TXRISETUNE0_BIT);
 		}
 
 		writel(reg, usbmisc->base + MX7D_USB_OTG_PHY_CFG1);

drivers/usb/class/cdc-acm.c

···
 #include <linux/serial.h>
 #include <linux/tty_driver.h>
 #include <linux/tty_flip.h>
+#include <linux/tty_ldisc.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/uaccess.h>
···
 		}
 
 		difference = acm->ctrlin ^ newctrl;
+
+		if ((difference & USB_CDC_SERIAL_STATE_DCD) && acm->port.tty) {
+			struct tty_ldisc *ld = tty_ldisc_ref(acm->port.tty);
+			if (ld) {
+				if (ld->ops->dcd_change)
+					ld->ops->dcd_change(acm->port.tty, newctrl & USB_CDC_SERIAL_STATE_DCD);
+				tty_ldisc_deref(ld);
+			}
+		}
+
 		spin_lock_irqsave(&acm->read_lock, flags);
 		acm->ctrlin = newctrl;
 		acm->oldcount = acm->iocount;
···
 	 * or it might get too enthusiastic.
 	 */
 	return acm_wb_is_avail(acm) ? acm->writesize : 0;
+}
+
+static void acm_tty_flush_buffer(struct tty_struct *tty)
+{
+	struct acm *acm = tty->driver_data;
+	unsigned long flags;
+	int i;
+
+	spin_lock_irqsave(&acm->write_lock, flags);
+	for (i = 0; i < ACM_NW; i++)
+		if (acm->wb[i].use)
+			usb_unlink_urb(acm->wb[i].urb);
+	spin_unlock_irqrestore(&acm->write_lock, flags);
 }
 
 static unsigned int acm_tty_chars_in_buffer(struct tty_struct *tty)
···
 	.hangup =		acm_tty_hangup,
 	.write =		acm_tty_write,
 	.write_room =		acm_tty_write_room,
+	.flush_buffer =		acm_tty_flush_buffer,
 	.ioctl =		acm_tty_ioctl,
 	.throttle =		acm_tty_throttle,
 	.unthrottle =		acm_tty_unthrottle,

drivers/usb/common/common.c

···
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/platform_device.h>
 #include <linux/usb/ch9.h>
 #include <linux/usb/of.h>
 #include <linux/usb/otg.h>

drivers/usb/core/config.c

···
 		}
 
 		switch (cap_type) {
-		case USB_CAP_TYPE_WIRELESS_USB:
-			/* Wireless USB cap descriptor is handled by wusb */
-			break;
 		case USB_CAP_TYPE_EXT:
 			dev->bos->ext_cap =
 				(struct usb_ext_cap_descriptor *)buffer;

drivers/usb/core/devices.c

···
 	case USB_SPEED_UNKNOWN:		/* usb 1.1 root hub code */
 	case USB_SPEED_FULL:
 		speed = "12"; break;
-	case USB_SPEED_WIRELESS:	/* Wireless has no real fixed speed */
 	case USB_SPEED_HIGH:
 		speed = "480"; break;
 	case USB_SPEED_SUPER:

drivers/usb/core/file.c

···
 #define MAX_USB_MINORS	256
 static const struct file_operations *usb_minors[MAX_USB_MINORS];
 static DECLARE_RWSEM(minor_rwsem);
-static DEFINE_MUTEX(init_usb_class_mutex);
 
 static int usb_open(struct inode *inode, struct file *file)
 {
···
 	.llseek =	noop_llseek,
 };
 
-static struct usb_class {
-	struct kref kref;
-	struct class *class;
-} *usb_class;
-
 static char *usb_devnode(const struct device *dev, umode_t *mode)
 {
 	struct usb_class_driver *drv;
···
 	return drv->devnode(dev, mode);
 }
 
-static int init_usb_class(void)
-{
-	int result = 0;
-
-	if (usb_class != NULL) {
-		kref_get(&usb_class->kref);
-		goto exit;
-	}
-
-	usb_class = kmalloc(sizeof(*usb_class), GFP_KERNEL);
-	if (!usb_class) {
-		result = -ENOMEM;
-		goto exit;
-	}
-
-	kref_init(&usb_class->kref);
-	usb_class->class = class_create("usbmisc");
-	if (IS_ERR(usb_class->class)) {
-		result = PTR_ERR(usb_class->class);
-		printk(KERN_ERR "class_create failed for usb devices\n");
-		kfree(usb_class);
-		usb_class = NULL;
-		goto exit;
-	}
-	usb_class->class->devnode = usb_devnode;
-
-exit:
-	return result;
-}
-
-static void release_usb_class(struct kref *kref)
-{
-	/* Ok, we cheat as we know we only have one usb_class */
-	class_destroy(usb_class->class);
-	kfree(usb_class);
-	usb_class = NULL;
-}
-
-static void destroy_usb_class(void)
-{
-	mutex_lock(&init_usb_class_mutex);
-	kref_put(&usb_class->kref, release_usb_class);
-	mutex_unlock(&init_usb_class_mutex);
-}
+const struct class usbmisc_class = {
+	.name		= "usbmisc",
+	.devnode	= usb_devnode,
+};
 
 int usb_major_init(void)
 {
···
 int usb_register_dev(struct usb_interface *intf,
 		     struct usb_class_driver *class_driver)
 {
-	int retval;
+	int retval = 0;
 	int minor_base = class_driver->minor_base;
 	int minor;
 	char name[20];
···
 		return -EINVAL;
 	if (intf->minor >= 0)
 		return -EADDRINUSE;
-
-	mutex_lock(&init_usb_class_mutex);
-	retval = init_usb_class();
-	mutex_unlock(&init_usb_class_mutex);
-
-	if (retval)
-		return retval;
 
 	dev_dbg(&intf->dev, "looking for a minor, starting at %d\n", minor_base);
 
···
 
 	/* create a usb class device for this usb interface */
 	snprintf(name, sizeof(name), class_driver->name, minor - minor_base);
-	intf->usb_dev = device_create(usb_class->class, &intf->dev,
+	intf->usb_dev = device_create(&usbmisc_class, &intf->dev,
 				      MKDEV(USB_MAJOR, minor), class_driver,
 				      "%s", kbasename(name));
 	if (IS_ERR(intf->usb_dev)) {
···
 		return;
 
 	dev_dbg(&intf->dev, "removing %d minor\n", intf->minor);
-	device_destroy(usb_class->class, MKDEV(USB_MAJOR, intf->minor));
+	device_destroy(&usbmisc_class, MKDEV(USB_MAJOR, intf->minor));
 
 	down_write(&minor_rwsem);
 	usb_minors[intf->minor] = NULL;
···
 
 	intf->usb_dev = NULL;
 	intf->minor = -1;
-	destroy_usb_class();
 }
 EXPORT_SYMBOL_GPL(usb_deregister_dev);

drivers/usb/core/hcd.c

···
 	0x01        /*  __u8  bNumConfigurations; */
 };
 
-/* usb 2.5 (wireless USB 1.0) root hub device descriptor */
-static const u8 usb25_rh_dev_descriptor[18] = {
-	0x12,       /*  __u8  bLength; */
-	USB_DT_DEVICE, /* __u8 bDescriptorType; Device */
-	0x50, 0x02, /*  __le16 bcdUSB; v2.5 */
-
-	0x09,	    /*  __u8  bDeviceClass; HUB_CLASSCODE */
-	0x00,	    /*  __u8  bDeviceSubClass; */
-	0x00,       /*  __u8  bDeviceProtocol; [ usb 2.0 no TT ] */
-	0xFF,       /*  __u8  bMaxPacketSize0; always 0xFF (WUSB Spec 7.4.1). */
-
-	0x6b, 0x1d, /*  __le16 idVendor; Linux Foundation 0x1d6b */
-	0x02, 0x00, /*  __le16 idProduct; device 0x0002 */
-	KERNEL_VER, KERNEL_REL, /*  __le16 bcdDevice */
-
-	0x03,       /*  __u8  iManufacturer; */
-	0x02,       /*  __u8  iProduct; */
-	0x01,       /*  __u8  iSerialNumber; */
-	0x01        /*  __u8  bNumConfigurations; */
-};
-
 /* usb 2.0 root hub device descriptor */
 static const u8 usb2_rh_dev_descriptor[18] = {
 	0x12,       /*  __u8  bLength; */
···
 };
 
 /* authorized_default behaviour:
- * -1 is authorized for all devices except wireless (old behaviour)
+ * -1 is authorized for all devices (leftover from wireless USB)
  * 0 is unauthorized for all devices
  * 1 is authorized for all devices
  * 2 is authorized for internal devices
···
 MODULE_PARM_DESC(authorized_default,
 		"Default USB device authorization: 0 is not authorized, 1 is "
 		"authorized, 2 is authorized for internal devices, -1 is "
-		"authorized except for wireless USB (default, old behaviour)");
+		"authorized (default, same as 1)");
 /*-------------------------------------------------------------------------*/
 
 /**
···
 			case HCD_USB3:
 				bufp = usb3_rh_dev_descriptor;
 				break;
-			case HCD_USB25:
-				bufp = usb25_rh_dev_descriptor;
-				break;
 			case HCD_USB2:
 				bufp = usb2_rh_dev_descriptor;
 				break;
···
 				bufp = ss_rh_config_descriptor;
 				len = sizeof ss_rh_config_descriptor;
 				break;
-			case HCD_USB25:
 			case HCD_USB2:
 				bufp = hs_rh_config_descriptor;
 				len = sizeof hs_rh_config_descriptor;
···
 {
 	struct device *parent_dev = hcd->self.controller;
 	struct usb_device *usb_dev = hcd->self.root_hub;
+	struct usb_device_descriptor *descr;
 	const int devnum = 1;
 	int retval;
 
···
 	mutex_lock(&usb_bus_idr_lock);
 
 	usb_dev->ep0.desc.wMaxPacketSize = cpu_to_le16(64);
-	retval = usb_get_device_descriptor(usb_dev, USB_DT_DEVICE_SIZE);
-	if (retval != sizeof usb_dev->descriptor) {
+	descr = usb_get_device_descriptor(usb_dev);
+	if (IS_ERR(descr)) {
+		retval = PTR_ERR(descr);
 		mutex_unlock(&usb_bus_idr_lock);
 		dev_dbg (parent_dev, "can't read %s device descriptor %d\n",
 				dev_name(&usb_dev->dev), retval);
-		return (retval < 0) ? retval : -EMSGSIZE;
+		return retval;
 	}
+	usb_dev->descriptor = *descr;
+	kfree(descr);
 
 	if (le16_to_cpu(usb_dev->descriptor.bcdUSB) >= 0x0201) {
 		retval = usb_get_bos_descriptor(usb_dev);
···
 		hcd->dev_policy = USB_DEVICE_AUTHORIZE_NONE;
 		break;
 
-	case USB_AUTHORIZE_ALL:
-		hcd->dev_policy = USB_DEVICE_AUTHORIZE_ALL;
-		break;
-
 	case USB_AUTHORIZE_INTERNAL:
 		hcd->dev_policy = USB_DEVICE_AUTHORIZE_INTERNAL;
 		break;
 
+	case USB_AUTHORIZE_ALL:
 	case USB_AUTHORIZE_WIRED:
 	default:
-		hcd->dev_policy = hcd->wireless ?
-			USB_DEVICE_AUTHORIZE_NONE : USB_DEVICE_AUTHORIZE_ALL;
+		hcd->dev_policy = USB_DEVICE_AUTHORIZE_ALL;
 		break;
 	}
 
···
 		break;
 	case HCD_USB2:
 		rhdev->speed = USB_SPEED_HIGH;
-		break;
-	case HCD_USB25:
-		rhdev->speed = USB_SPEED_WIRELESS;
 		break;
 	case HCD_USB3:
 		rhdev->speed = USB_SPEED_SUPER;

drivers/usb/core/hub.c

···
 		ret = 0;
 	}
 	mutex_unlock(&hub->status_mutex);
+
+	/*
+	 * There is no need to lock status_mutex here, because status_mutex
+	 * protects hub->status, and the phy driver only checks the port
+	 * status without changing the status.
+	 */
+	if (!ret) {
+		struct usb_device *hdev = hub->hdev;
+
+		/*
+		 * Only roothub will be notified of port state changes,
+		 * since the USB PHY only cares about changes at the next
+		 * level.
+		 */
+		if (is_root_hub(hdev)) {
+			struct usb_hcd *hcd = bus_to_hcd(hdev->bus);
+
+			if (hcd->usb_phy)
+				usb_phy_notify_port_status(hcd->usb_phy,
+							   port1 - 1, *status, *change);
+		}
+	}
+
 	return ret;
 }
 
···
  * USB-3.0 buses the address is assigned by the controller hardware
  * and it usually is not the same as the device number.
  *
- * WUSB devices are simple: they have no hubs behind, so the mapping
- * device <-> virtual port number becomes 1:1. Why? to simplify the
- * life of the device connection logic in
- * drivers/usb/wusbcore/devconnect.c. When we do the initial secret
- * handshake we need to assign a temporary address in the unauthorized
- * space. For simplicity we use the first virtual port number found to
- * be free [drivers/usb/wusbcore/devconnect.c:wusbhc_devconnect_ack()]
- * and that becomes it's address [X < 128] or its unauthorized address
- * [X | 0x80].
- *
- * We add 1 as an offset to the one-based USB-stack port number
- * (zero-based wusb virtual port index) for two reasons: (a) dev addr
- * 0 is reserved by USB for default address; (b) Linux's USB stack
- * uses always #1 for the root hub of the controller. So USB stack's
- * port #1, which is wusb virtual-port #0 has address #2.
- *
  * Devices connected under xHCI are not as simple.  The host controller
  * supports virtualization, so the hardware assigns device addresses and
  * the HCD must setup data structures before issuing a set address
···
 
 	/* be safe when more hub events are proceed in parallel */
 	mutex_lock(&bus->devnum_next_mutex);
-	if (udev->wusb) {
-		devnum = udev->portnum + 1;
-		BUG_ON(test_bit(devnum, bus->devmap.devicemap));
-	} else {
-		/* Try to allocate the next devnum beginning at
-		 * bus->devnum_next. */
-		devnum = find_next_zero_bit(bus->devmap.devicemap, 128,
-					    bus->devnum_next);
-		if (devnum >= 128)
-			devnum = find_next_zero_bit(bus->devmap.devicemap,
-						    128, 1);
-		bus->devnum_next = (devnum >= 127 ? 1 : devnum + 1);
-	}
+
+	/* Try to allocate the next devnum beginning at bus->devnum_next. */
+	devnum = find_next_zero_bit(bus->devmap.devicemap, 128,
+			bus->devnum_next);
+	if (devnum >= 128)
+		devnum = find_next_zero_bit(bus->devmap.devicemap, 128, 1);
+	bus->devnum_next = (devnum >= 127 ? 1 : devnum + 1);
 	if (devnum < 128) {
 		set_bit(devnum, bus->devmap.devicemap);
 		udev->devnum = devnum;
···
 
 static void update_devnum(struct usb_device *udev, int devnum)
 {
-	/* The address for a WUSB device is managed by wusbcore. */
-	if (!udev->wusb)
-		udev->devnum = devnum;
+	udev->devnum = devnum;
 	if (!udev->devaddr)
 		udev->devaddr = (u8)devnum;
 }
···
 		goto error_autoresume;
 	}
 
-	if (usb_dev->wusb) {
-		result = usb_get_device_descriptor(usb_dev, sizeof(usb_dev->descriptor));
-		if (result < 0) {
-			dev_err(&usb_dev->dev, "can't re-read device descriptor for "
-				"authorization: %d\n", result);
-			goto error_device_descriptor;
-		}
-	}
-
 	usb_dev->authorized = 1;
 	/* Choose and set the configuration.  This registers the interfaces
 	 * with the driver core and lets interface drivers bind to them.
···
 	}
 	dev_info(&usb_dev->dev, "authorized to connect\n");
 
-error_device_descriptor:
 	usb_autosuspend_device(usb_dev);
 error_autoresume:
 out_authorized:
···
 out:
 	return USB_SSP_GEN_UNKNOWN;
 }
-
-/* Returns 1 if @hub is a WUSB root hub, 0 otherwise */
-static unsigned hub_is_wusb(struct usb_hub *hub)
-{
-	struct usb_hcd *hcd;
-	if (hub->hdev->parent != NULL)  /* not a root hub? */
-		return 0;
-	hcd = bus_to_hcd(hub->hdev->bus);
-	return hcd->wireless;
-}
-
 
 #ifdef CONFIG_USB_FEW_INIT_RETRIES
 #define PORT_RESET_TRIES	2
···
 		udev->tx_lanes = 1;
 		udev->ssp_rate = USB_SSP_GEN_UNKNOWN;
 	}
-	if (hub_is_wusb(hub))
-		udev->speed = USB_SPEED_WIRELESS;
-	else if (udev->ssp_rate != USB_SSP_GEN_UNKNOWN)
+	if (udev->ssp_rate != USB_SSP_GEN_UNKNOWN)
 		udev->speed = USB_SPEED_SUPER_PLUS;
 	else if (hub_is_superspeed(hub->hdev))
 		udev->speed = USB_SPEED_SUPER;
···
 	return hcd->driver->enable_device(hcd, udev);
 }
 
+/*
+ * Get the bMaxPacketSize0 value during initialization by reading the
+ * device's device descriptor.  Since we don't already know this value,
+ * the transfer is unsafe and it ignores I/O errors, only testing for
+ * reasonable received values.
+ *
+ * For "old scheme" initialization, size will be 8 so we read just the
+ * start of the device descriptor, which should work okay regardless of
+ * the actual bMaxPacketSize0 value.  For "new scheme" initialization,
+ * size will be 64 (and buf will point to a sufficiently large buffer),
+ * which might not be kosher according to the USB spec but it's what
+ * Windows does and what many devices expect.
+ *
+ * Returns: bMaxPacketSize0 or a negative error code.
+ */
+static int get_bMaxPacketSize0(struct usb_device *udev,
+		struct usb_device_descriptor *buf, int size, bool first_time)
+{
+	int i, rc;
+
+	/*
+	 * Retry on all errors; some devices are flakey.
+	 * 255 is for WUSB devices, we actually need to use
+	 * 512 (WUSB1.0[4.8.1]).
+	 */
+	for (i = 0; i < GET_MAXPACKET0_TRIES; ++i) {
+		/* Start with invalid values in case the transfer fails */
+		buf->bDescriptorType = buf->bMaxPacketSize0 = 0;
+		rc = usb_control_msg(udev, usb_rcvaddr0pipe(),
+				USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
+				USB_DT_DEVICE << 8, 0,
+				buf, size,
+				initial_descriptor_timeout);
+		switch (buf->bMaxPacketSize0) {
+		case 8: case 16: case 32: case 64: case 9:
+			if (buf->bDescriptorType == USB_DT_DEVICE) {
+				rc = buf->bMaxPacketSize0;
+				break;
+			}
+			fallthrough;
+		default:
+			if (rc >= 0)
+				rc = -EPROTO;
+			break;
+		}
+
+		/*
+		 * Some devices time out if they are powered on
+		 * when already connected. They need a second
+		 * reset, so return early. But only on the first
+		 * attempt, lest we get into a time-out/reset loop.
+		 */
+		if (rc > 0 || (rc == -ETIMEDOUT && first_time &&
+				udev->speed > USB_SPEED_FULL))
+			break;
+	}
+	return rc;
+}
+
+#define GET_DESCRIPTOR_BUFSIZE	64
+
 /* Reset device, (re)assign address, get device descriptor.
  * Device connection must be stable, no more debouncing needed.
  * Returns device in USB_STATE_ADDRESS, except on error.
···
  * the port lock.  For a newly detected device that is not accessible
  * through any global pointers, it's not necessary to lock the device,
  * but it is still necessary to lock the port.
+ *
+ * For a newly detected device, @dev_descr must be NULL.  The device
+ * descriptor retrieved from the device will then be stored in
+ * @udev->descriptor.  For an already existing device, @dev_descr
+ * must be non-NULL.  The device descriptor will be stored there,
+ * not in @udev->descriptor, because descriptors for registered
+ * devices are meant to be immutable.
  */
 static int
 hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
-		int retry_counter)
+		int retry_counter, struct usb_device_descriptor *dev_descr)
 {
 	struct usb_device	*hdev = hub->hdev;
 	struct usb_hcd		*hcd = bus_to_hcd(hdev->bus);
···
 	int			devnum = udev->devnum;
 	const char		*driver_name;
 	bool			do_new_scheme;
+	const bool		initial = !dev_descr;
+	int			maxp0;
+	struct usb_device_descriptor	*buf, *descr;
+
+	buf = kmalloc(GET_DESCRIPTOR_BUFSIZE, GFP_NOIO);
+	if (!buf)
+		return -ENOMEM;
 
 	/* root hub ports have a slightly longer reset period
 	 * (from USB 2.0 spec, section 7.1.7.5)
···
 	}
 	oldspeed = udev->speed;
 
-	/* USB 2.0 section 5.5.3 talks about ep0 maxpacket ...
-	 * it's fixed size except for full speed devices.
-	 * For Wireless USB devices, ep0 max packet is always 512 (tho
-	 * reported as 0xff in the device descriptor). WUSB1.0[4.8.1].
-	 */
-	switch (udev->speed) {
-	case USB_SPEED_SUPER_PLUS:
-	case USB_SPEED_SUPER:
-	case USB_SPEED_WIRELESS:	/* fixed at 512 */
-		udev->ep0.desc.wMaxPacketSize = cpu_to_le16(512);
-		break;
-	case USB_SPEED_HIGH:		/* fixed at 64 */
-		udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64);
-		break;
-	case USB_SPEED_FULL:		/* 8, 16, 32, or 64 */
-		/* to determine the ep0 maxpacket size, try to read
-		 * the device descriptor to get bMaxPacketSize0 and
-		 * then correct our initial guess.
+	if (initial) {
+		/* USB 2.0 section 5.5.3 talks about ep0 maxpacket ...
+		 * it's fixed size except for full speed devices.
 		 */
-		udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64);
-		break;
-	case USB_SPEED_LOW:		/* fixed at 8 */
-		udev->ep0.desc.wMaxPacketSize = cpu_to_le16(8);
-		break;
-	default:
-		goto fail;
+		switch (udev->speed) {
+		case USB_SPEED_SUPER_PLUS:
+		case USB_SPEED_SUPER:
+			udev->ep0.desc.wMaxPacketSize = cpu_to_le16(512);
+			break;
+		case USB_SPEED_HIGH:		/* fixed at 64 */
+			udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64);
+			break;
+		case USB_SPEED_FULL:		/* 8, 16, 32, or 64 */
+			/* to determine the ep0 maxpacket size, try to read
+			 * the device descriptor to get bMaxPacketSize0 and
+			 * then correct our initial guess.
+			 */
+			udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64);
+			break;
+		case USB_SPEED_LOW:		/* fixed at 8 */
+			udev->ep0.desc.wMaxPacketSize = cpu_to_le16(8);
+			break;
+		default:
+			goto fail;
+		}
 	}
 
-	if (udev->speed == USB_SPEED_WIRELESS)
-		speed = "variable speed Wireless";
-	else
-		speed = usb_speed_string(udev->speed);
+	speed = usb_speed_string(udev->speed);
 
 	/*
 	 * The controller driver may be NULL if the controller device
···
 	if (udev->speed < USB_SPEED_SUPER)
 		dev_info(&udev->dev,
 				"%s %s USB device number %d using %s\n",
-				(udev->config) ? "reset" : "new", speed,
+				(initial ? "new" : "reset"), speed,
 				devnum, driver_name);
 
-	/* Set up TT records, if needed  */
-	if (hdev->tt) {
-		udev->tt = hdev->tt;
-		udev->ttport = hdev->ttport;
-	} else if (udev->speed != USB_SPEED_HIGH
-			&& hdev->speed == USB_SPEED_HIGH) {
-		if (!hub->tt.hub) {
-			dev_err(&udev->dev, "parent hub has no TT\n");
-			retval = -EINVAL;
-			goto fail;
+	if (initial) {
+		/* Set up TT records, if needed  */
+		if (hdev->tt) {
+			udev->tt = hdev->tt;
+			udev->ttport = hdev->ttport;
+		} else if (udev->speed != USB_SPEED_HIGH
+				&& hdev->speed == USB_SPEED_HIGH) {
+			if (!hub->tt.hub) {
+				dev_err(&udev->dev, "parent hub has no TT\n");
+				retval = -EINVAL;
+				goto fail;
+			}
+			udev->tt = &hub->tt;
+			udev->ttport = port1;
 		}
-		udev->tt = &hub->tt;
-		udev->ttport = port1;
 	}
 
 	/* Why interleave GET_DESCRIPTOR and SET_ADDRESS this way?
···
 		}
 
 		if (do_new_scheme) {
-			struct usb_device_descriptor *buf;
-			int r = 0;
-
 			retval = hub_enable_device(udev);
 			if (retval < 0) {
 				dev_err(&udev->dev,
···
 				goto fail;
 			}
 
-#define GET_DESCRIPTOR_BUFSIZE	64
-			buf = kmalloc(GET_DESCRIPTOR_BUFSIZE, GFP_NOIO);
-			if (!buf) {
-				retval = -ENOMEM;
-				continue;
+			maxp0 = get_bMaxPacketSize0(udev, buf,
+					GET_DESCRIPTOR_BUFSIZE, retries == 0);
+			if (maxp0 > 0 && !initial &&
+					maxp0 != udev->descriptor.bMaxPacketSize0) {
+				dev_err(&udev->dev, "device reset changed ep0 maxpacket size!\n");
+				retval = -ENODEV;
+				goto fail;
 			}
-
-			/* Retry on all errors; some devices are flakey.
-			 * 255 is for WUSB devices, we actually need to use
-			 * 512 (WUSB1.0[4.8.1]).
-			 */
-			for (operations = 0; operations < GET_MAXPACKET0_TRIES;
-					++operations) {
-				buf->bMaxPacketSize0 = 0;
-				r = usb_control_msg(udev, usb_rcvaddr0pipe(),
-					USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
-					USB_DT_DEVICE << 8, 0,
-					buf, GET_DESCRIPTOR_BUFSIZE,
-					initial_descriptor_timeout);
-				switch (buf->bMaxPacketSize0) {
-				case 8: case 16: case 32: case 64: case 255:
-					if (buf->bDescriptorType ==
-							USB_DT_DEVICE) {
-						r = 0;
-						break;
-					}
-					fallthrough;
-				default:
-					if (r == 0)
-						r = -EPROTO;
-					break;
-				}
-				/*
-				 * Some devices time out if they are powered on
-				 * when already connected. They need a second
-				 * reset. But only on the first attempt,
-				 * lest we get into a time out/reset loop
-				 */
-				if (r == 0 || (r == -ETIMEDOUT &&
-						retries == 0 &&
-						udev->speed > USB_SPEED_FULL))
-					break;
-			}
-			udev->descriptor.bMaxPacketSize0 =
-					buf->bMaxPacketSize0;
-			kfree(buf);
 
 			retval = hub_port_reset(hub, port1, udev, delay, false);
 			if (retval < 0)		/* error or disconnect */
···
 				retval = -ENODEV;
 				goto fail;
 			}
-			if (r) {
-				if (r != -ENODEV)
+			if (maxp0 < 0) {
+				if (maxp0 != -ENODEV)
 					dev_err(&udev->dev, "device descriptor read/64, error %d\n",
-							r);
-				retval = -EMSGSIZE;
+							maxp0);
+				retval = maxp0;
 				continue;
 			}
-#undef GET_DESCRIPTOR_BUFSIZE
+		}
+
+		for (operations = 0; operations < SET_ADDRESS_TRIES; ++operations) {
+			retval = hub_set_address(udev, devnum);
+			if (retval >= 0)
+				break;
+			msleep(200);
+		}
+		if (retval < 0) {
+			if (retval != -ENODEV)
+				dev_err(&udev->dev, "device not accepting address %d, error %d\n",
+						devnum, retval);
+			goto fail;
+		}
+		if (udev->speed >= USB_SPEED_SUPER) {
+			devnum = udev->devnum;
+			dev_info(&udev->dev,
+					"%s SuperSpeed%s%s USB device number %d using %s\n",
+					(udev->config) ? "reset" : "new",
+				 (udev->speed == USB_SPEED_SUPER_PLUS) ?
+						" Plus" : "",
+				 (udev->ssp_rate == USB_SSP_GEN_2x2) ?
+						" Gen 2x2" :
+				 (udev->ssp_rate == USB_SSP_GEN_2x1) ?
+						" Gen 2x1" :
+				 (udev->ssp_rate == USB_SSP_GEN_1x2) ?
+						" Gen 1x2" : "",
+				 devnum, driver_name);
 		}
 
 		/*
-		 * If device is WUSB, we already assigned an
-		 * unauthorized address in the Connect Ack sequence;
-		 * authorization will assign the final address.
+		 * cope with hardware quirkiness:
+		 *  - let SET_ADDRESS settle, some device hardware wants it
+		 *  - read ep0 maxpacket even for high and low speed,
 		 */
-		if (udev->wusb == 0) {
-			for (operations = 0; operations < SET_ADDRESS_TRIES; ++operations) {
-				retval = hub_set_address(udev, devnum);
-				if (retval >= 0)
-					break;
-				msleep(200);
-			}
-			if (retval < 0) {
-				if (retval != -ENODEV)
-					dev_err(&udev->dev, "device not accepting address %d, error %d\n",
-							devnum, retval);
-				goto fail;
-			}
-			if (udev->speed >= USB_SPEED_SUPER) {
-				devnum = udev->devnum;
-				dev_info(&udev->dev,
-						"%s SuperSpeed%s%s USB device number %d using %s\n",
-						(udev->config) ? "reset" : "new",
-					 (udev->speed == USB_SPEED_SUPER_PLUS) ?
-							" Plus" : "",
-					 (udev->ssp_rate == USB_SSP_GEN_2x2) ?
-							" Gen 2x2" :
-					 (udev->ssp_rate == USB_SSP_GEN_2x1) ?
-							" Gen 2x1" :
-					 (udev->ssp_rate == USB_SSP_GEN_1x2) ?
-							" Gen 1x2" : "",
-					 devnum, driver_name);
-			}
+		msleep(10);
 
-			/* cope with hardware quirkiness:
-			 *  - let SET_ADDRESS settle, some device hardware wants it
-			 *  - read ep0 maxpacket even for high and low speed,
-			 */
-			msleep(10);
-			if (do_new_scheme)
-				break;
-		}
+		if (do_new_scheme)
+			break;
 
-		retval = usb_get_device_descriptor(udev, 8);
-		if (retval < 8) {
+		maxp0 = get_bMaxPacketSize0(udev, buf, 8, retries == 0);
+		if (maxp0 < 0) {
+			retval = maxp0;
 			if (retval != -ENODEV)
 				dev_err(&udev->dev,
 					"device descriptor read/8, error %d\n",
 					retval);
-			if (retval >= 0)
-				retval = -EMSGSIZE;
 		} else {
 			u32 delay;
 
-			retval = 0;
+			if (!initial && maxp0 != udev->descriptor.bMaxPacketSize0) {
+				dev_err(&udev->dev, "device reset changed ep0 maxpacket size!\n");
+				retval = -ENODEV;
+				goto fail;
+			}
 
 			delay = udev->parent->hub_delay;
 			udev->hub_delay = min_t(u32, delay,
···
 		goto fail;
 
 	/*
+	 * Check the ep0 maxpacket guess and correct it if necessary.
+	 * maxp0 is the value stored in the device descriptor;
+	 * i is the value it encodes (logarithmic for SuperSpeed or greater).
+	 */
+	i = maxp0;
+	if (udev->speed >= USB_SPEED_SUPER) {
+		if (maxp0 <= 16)
+			i = 1 << maxp0;
+		else
+			i = 0;		/* Invalid */
+	}
+	if (usb_endpoint_maxp(&udev->ep0.desc) == i) {
+		;	/* Initial ep0 maxpacket guess is right */
+	} else if ((udev->speed == USB_SPEED_FULL ||
+				udev->speed == USB_SPEED_HIGH) &&
+			(i == 8 || i == 16 || i == 32 || i == 64)) {
+		/* Initial guess is wrong; use the descriptor's value */
+		if (udev->speed == USB_SPEED_FULL)
+			dev_dbg(&udev->dev, "ep0 maxpacket = %d\n", i);
+		else
+			dev_warn(&udev->dev, "Using ep0 maxpacket: %d\n", i);
+		udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i);
+		usb_ep0_reinit(udev);
+	} else {
+		/* Initial guess is wrong and descriptor's value is invalid */
+		dev_err(&udev->dev, "Invalid ep0 maxpacket: %d\n", maxp0);
+		retval = -EMSGSIZE;
+		goto fail;
+	}
+
+	descr = usb_get_device_descriptor(udev);
+	if (IS_ERR(descr)) {
+		retval = PTR_ERR(descr);
+		if (retval != -ENODEV)
+			dev_err(&udev->dev, "device descriptor read/all, error %d\n",
+					retval);
+		goto fail;
+	}
+	if (initial)
+		udev->descriptor = *descr;
+	else
+		*dev_descr = *descr;
+	kfree(descr);
+
+	/*
 	 * Some superspeed devices have finished the link training process
 	 * and attached to a superspeed hub port, but the device descriptor
 	 * got from those devices show they aren't superspeed devices. Warm
···
 	 */
 	if ((udev->speed >= USB_SPEED_SUPER) &&
 			(le16_to_cpu(udev->descriptor.bcdUSB) < 0x0300)) {
-		dev_err(&udev->dev, "got a wrong device descriptor, "
-				"warm reset device\n");
-		hub_port_reset(hub, port1, udev,
-				HUB_BH_RESET_TIME, true);
+		dev_err(&udev->dev, "got a wrong device descriptor, warm reset device\n");
+		hub_port_reset(hub, port1, udev, HUB_BH_RESET_TIME, true);
 		retval = -EINVAL;
-		goto fail;
-	}
-
-	if (udev->descriptor.bMaxPacketSize0 == 0xff ||
-			udev->speed >= USB_SPEED_SUPER)
-		i = 512;
-	else
-		i = udev->descriptor.bMaxPacketSize0;
-	if (usb_endpoint_maxp(&udev->ep0.desc) != i) {
-		if (udev->speed == USB_SPEED_LOW ||
-				!(i == 8 || i == 16 || i == 32 || i == 64)) {
-			dev_err(&udev->dev, "Invalid ep0 maxpacket: %d\n", i);
-			retval = -EMSGSIZE;
-			goto fail;
-		}
-		if (udev->speed == USB_SPEED_FULL)
-			dev_dbg(&udev->dev, "ep0 maxpacket = %d\n", i);
-		else
-			dev_warn(&udev->dev, "Using ep0 maxpacket: %d\n", i);
-		udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i);
-		usb_ep0_reinit(udev);
-	}
-
-	retval = usb_get_device_descriptor(udev, USB_DT_DEVICE_SIZE);
-	if (retval < (signed)sizeof(udev->descriptor)) {
-		if (retval != -ENODEV)
-			dev_err(&udev->dev, "device descriptor read/all, error %d\n",
-					retval);
-		if (retval >= 0)
-			retval = -ENOMSG;
 		goto fail;
 	}
 
 	usb_detect_quirks(udev);
 
-	if (udev->wusb == 0 && le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0201) {
+	if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0201) {
 		retval = usb_get_bos_descriptor(udev);
 		if (!retval) {
 			udev->lpm_capable = usb_device_supports_lpm(udev);
···
 		hub_port_disable(hub, port1, 0);
 		update_devnum(udev, devnum);	/* for disconnect processing */
 	}
+	kfree(buf);
 	return retval;
 }
 
···
 
 
 static int descriptors_changed(struct usb_device *udev,
-		struct usb_device_descriptor *old_device_descriptor,
+		struct usb_device_descriptor *new_device_descriptor,
 		struct usb_host_bos *old_bos)
 {
 	int		changed = 0;
···
 	int		length;
 	char		*buf;
 
-	if (memcmp(&udev->descriptor, old_device_descriptor,
-			sizeof(*old_device_descriptor)) != 0)
+	if (memcmp(&udev->descriptor, new_device_descriptor,
+			sizeof(*new_device_descriptor)) != 0)
 		return 1;
 
 	if ((old_bos && !udev->bos) || (!old_bos && udev->bos))
···
 		usb_set_device_state(udev, USB_STATE_POWERED);
 		udev->bus_mA = hub->mA_per_port;
 		udev->level = hdev->level + 1;
-		udev->wusb = hub_is_wusb(hub);
 
 		/* Devices connected to SuperSpeed hubs are USB 3.0 or later */
 		if (hub_is_superspeed(hub->hdev))
···
 		}
 
 		/* reset (non-USB 3.0 devices) and get descriptor */
-		status = hub_port_init(hub, udev, port1, i);
+		status = hub_port_init(hub, udev, port1, i, NULL);
 		if (status < 0)
 			goto loop;
 
···
 {
 	struct usb_port *port_dev = hub->ports[port1 - 1];
 	struct usb_device *udev = port_dev->child;
-	struct usb_device_descriptor descriptor;
+	struct usb_device_descriptor *descr;
 	int status = -ENODEV;
-	int retval;
 
 	dev_dbg(&port_dev->dev, "status %04x, change %04x, %s\n", portstatus,
 			portchange, portspeed(hub, portstatus));
···
 			 * changed device descriptors before resuscitating the
 			 * device.
 			 */
-			descriptor = udev->descriptor;
-			retval = usb_get_device_descriptor(udev,
-					sizeof(udev->descriptor));
-			if (retval < 0) {
+			descr = usb_get_device_descriptor(udev);
+			if (IS_ERR(descr)) {
 				dev_dbg(&udev->dev,
-						"can't read device descriptor %d\n",
-						retval);
+						"can't read device descriptor %ld\n",
+						PTR_ERR(descr));
 			} else {
-				if (descriptors_changed(udev, &descriptor,
+				if (descriptors_changed(udev, descr,
 						udev->bos)) {
 					dev_dbg(&udev->dev,
 							"device descriptor has changed\n");
-					/* for disconnect() calls */
-					udev->descriptor = descriptor;
 				} else {
 					status = 0; /* Nothing to do */
 				}
+				kfree(descr);
 			}
 #ifdef CONFIG_PM
 		} else if (udev->state == USB_STATE_SUSPENDED &&
···
 	struct usb_device		*parent_hdev = udev->parent;
 	struct usb_hub			*parent_hub;
 	struct usb_hcd			*hcd = bus_to_hcd(udev->bus);
-	struct usb_device_descriptor	descriptor = udev->descriptor;
+	struct usb_device_descriptor	descriptor;
 	struct usb_host_bos		*bos;
 	int				i, j, ret = 0;
 	int				port1 = udev->portnum;
···
 		/* ep0 maxpacket size may change; let the HCD know about it.
 		 * Other endpoints will be handled by re-enumeration. */
 		usb_ep0_reinit(udev);
-		ret = hub_port_init(parent_hub, udev, port1, i);
+		ret = hub_port_init(parent_hub, udev, port1, i, &descriptor);
 		if (ret >= 0 || ret == -ENOTCONN || ret == -ENODEV)
 			break;
 	}
···
 	/* Device might have changed firmware (DFU or similar) */
 	if (descriptors_changed(udev, &descriptor, bos)) {
 		dev_info(&udev->dev, "device firmware changed\n");
-		udev->descriptor = descriptor;	/* for disconnect() calls */
 		goto re_enumerate;
 	}
 

drivers/usb/core/ledtrig-usbport.c

···
 	.deactivate = usbport_trig_deactivate,
 };
 
-static int __init usbport_trig_init(void)
-{
-	return led_trigger_register(&usbport_led_trigger);
-}
-
-static void __exit usbport_trig_exit(void)
-{
-	led_trigger_unregister(&usbport_led_trigger);
-}
-
-module_init(usbport_trig_init);
-module_exit(usbport_trig_exit);
+module_led_trigger(usbport_led_trigger);
 
 MODULE_AUTHOR("Rafał Miłecki <[e-mail]>");
 MODULE_DESCRIPTION("USB port trigger");

drivers/usb/core/message.c

···
 #include <linux/pci.h>	/* for scatterlist macros */
 #include <linux/usb.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/slab.h>
 #include <linux/mm.h>
 #include <linux/timer.h>
···
 EXPORT_SYMBOL_GPL(usb_cache_string);
 
 /*
- * usb_get_device_descriptor - (re)reads the device descriptor (usbcore)
- * @dev: the device whose device descriptor is being updated
- * @size: how much of the descriptor to read
+ * usb_get_device_descriptor - read the device descriptor
+ * @udev: the device whose device descriptor should be read
  *
  * Context: task context, might sleep.
- *
- * Updates the copy of the device descriptor stored in the device structure,
- * which dedicates space for this purpose.
  *
  * Not exported, only for use by the core.  If drivers really want to read
  * the device descriptor directly, they can call usb_get_descriptor() with
  * type = USB_DT_DEVICE and index = 0.
  *
- * This call is synchronous, and may not be used in an interrupt context.
- *
- * Return: The number of bytes received on success, or else the status code
- * returned by the underlying usb_control_msg() call.
+ * Returns: a pointer to a dynamically allocated usb_device_descriptor
+ * structure (which the caller must deallocate), or an ERR_PTR value.
  */
-int usb_get_device_descriptor(struct usb_device *dev, unsigned int size)
+struct usb_device_descriptor *usb_get_device_descriptor(struct usb_device *udev)
 {
 	struct usb_device_descriptor *desc;
 	int ret;
 
-	if (size > sizeof(*desc))
-		return -EINVAL;
 	desc = kmalloc(sizeof(*desc), GFP_NOIO);
 	if (!desc)
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 
-	ret = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, size);
+	ret = usb_get_descriptor(udev, USB_DT_DEVICE, 0, desc, sizeof(*desc));
+	if (ret == sizeof(*desc))
+		return desc;
+
 	if (ret >= 0)
-		memcpy(&dev->descriptor, desc, size);
+		ret = -EMSGSIZE;
 	kfree(desc);
-	return ret;
+	return ERR_PTR(ret);
 }
 
 /*

drivers/usb/core/of.c

···
  */
 
 #include <linux/of.h>
-#include <linux/of_platform.h>
 #include <linux/usb/of.h>
 
 /**

drivers/usb/core/sysfs.c

···
 	case USB_SPEED_HIGH:
 		speed = "480";
 		break;
-	case USB_SPEED_WIRELESS:
-		speed = "480";
-		break;
 	case USB_SPEED_SUPER:
 		speed = "5000";
 		break;

drivers/usb/core/urb.c

···
 			urb->iso_frame_desc[n].status = -EXDEV;
 			urb->iso_frame_desc[n].actual_length = 0;
 		}
-	} else if (urb->num_sgs && !urb->dev->bus->no_sg_constraint &&
-			dev->speed != USB_SPEED_WIRELESS) {
+	} else if (urb->num_sgs && !urb->dev->bus->no_sg_constraint) {
 		struct scatterlist *sg;
 		int i;
 
···
 	case USB_ENDPOINT_XFER_ISOC:
 	case USB_ENDPOINT_XFER_INT:
 		/* too small? */
-		switch (dev->speed) {
-		case USB_SPEED_WIRELESS:
-			if ((urb->interval < 6)
-				&& (xfertype == USB_ENDPOINT_XFER_INT))
-				return -EINVAL;
-			fallthrough;
-		default:
-			if (urb->interval <= 0)
-				return -EINVAL;
-			break;
-		}
+		if (urb->interval <= 0)
+			return -EINVAL;
+
 		/* too big? */
 		switch (dev->speed) {
 		case USB_SPEED_SUPER_PLUS:
···
 			if (urb->interval > (1 << 15))
 				return -EINVAL;
 			max = 1 << 15;
-			break;
-		case USB_SPEED_WIRELESS:
-			if (urb->interval > 16)
-				return -EINVAL;
 			break;
 		case USB_SPEED_HIGH:	/* units are microframes */
 			/* NOTE usb handles 2^15 */
···
 		default:
 			return -EINVAL;
 		}
-		if (dev->speed != USB_SPEED_WIRELESS) {
-			/* Round down to a power of 2, no more than max */
-			urb->interval = min(max, 1 << ilog2(urb->interval));
-		}
+		/* Round down to a power of 2, no more than max */
+		urb->interval = min(max, 1 << ilog2(urb->interval));
 	}
 
 	return usb_hcd_submit_urb(urb, mem_flags);

drivers/usb/core/usb.c

···
 
 #include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/of.h>
 #include <linux/string.h>
 #include <linux/bitops.h>
 #include <linux/slab.h>
···
 #endif
 };
 
-
-/* Returns 1 if @usb_bus is WUSB, 0 otherwise */
-static unsigned usb_bus_is_wusb(struct usb_bus *bus)
-{
-	struct usb_hcd *hcd = bus_to_hcd(bus);
-	return hcd->wireless;
-}
-
 static bool usb_dev_authorized(struct usb_device *dev, struct usb_hcd *hcd)
 {
 	struct usb_hub *hub;
···
 {
 	struct usb_device *dev;
 	struct usb_hcd *usb_hcd = bus_to_hcd(bus);
-	unsigned root_hub = 0;
 	unsigned raw_port = port1;
 
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
···
 		dev->dev.parent = bus->controller;
 		device_set_of_node_from_dev(&dev->dev, bus->sysdev);
 		dev_set_name(&dev->dev, "usb%d", bus->busnum);
-		root_hub = 1;
 	} else {
 		/* match any labeling on the hubs; it's one-based */
 		if (parent->devpath[0] == '0') {
···
 #endif
 
 	dev->authorized = usb_dev_authorized(dev, usb_hcd);
-	if (!root_hub)
-		dev->wusb = usb_bus_is_wusb(bus) ? 1 : 0;
-
 	return dev;
 }
 EXPORT_SYMBOL_GPL(usb_alloc_dev);
···
 	retval = usb_major_init();
 	if (retval)
 		goto major_init_failed;
+	retval = class_register(&usbmisc_class);
+	if (retval)
+		goto class_register_failed;
 	retval = usb_register(&usbfs_driver);
 	if (retval)
 		goto driver_register_failed;
···
 usb_devio_init_failed:
 	usb_deregister(&usbfs_driver);
 driver_register_failed:
+	class_unregister(&usbmisc_class);
+class_register_failed:
 	usb_major_cleanup();
 major_init_failed:
 	bus_unregister_notifier(&usb_bus_type, &usb_bus_nb);
···
 	usb_deregister(&usbfs_driver);
 	usb_devio_cleanup();
 	usb_hub_cleanup();
+	class_unregister(&usbmisc_class);
 	bus_unregister_notifier(&usb_bus_type, &usb_bus_nb);
 	bus_unregister(&usb_bus_type);
 	usb_acpi_unregister();

drivers/usb/core/usb.h

···
 		struct usb_endpoint_descriptor *epd);
 extern int usb_remove_device(struct usb_device *udev);
 
-extern int usb_get_device_descriptor(struct usb_device *dev,
-		unsigned int size);
+extern struct usb_device_descriptor *usb_get_device_descriptor(
+		struct usb_device *udev);
 extern int usb_set_isoch_delay(struct usb_device *dev);
 extern int usb_get_bos_descriptor(struct usb_device *dev);
 extern void usb_release_bos_descriptor(struct usb_device *dev);
···
 
 #endif
 
+extern const struct class usbmisc_class;
 extern const struct bus_type usb_bus_type;
 extern struct mutex usb_port_peer_mutex;
 extern struct device_type usb_device_type;

drivers/usb/dwc2/core.h

···
 /* The device ID match table */
 extern const struct of_device_id dwc2_of_match_table[];
 extern const struct acpi_device_id dwc2_acpi_match[];
+extern const struct pci_device_id dwc2_pci_ids[];
 
 int dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg);
 int dwc2_lowlevel_hw_disable(struct dwc2_hsotg *hsotg);

drivers/usb/dwc2/gadget.c

···
 #include <linux/delay.h>
 #include <linux/io.h>
 #include <linux/slab.h>
-#include <linux/of_platform.h>
 
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>

drivers/usb/dwc2/hcd_intr.c

···
 irqreturn_t dwc2_handle_hcd_intr(struct dwc2_hsotg *hsotg)
 {
 	u32 gintsts, dbg_gintsts;
-	irqreturn_t retval = IRQ_NONE;
+	irqreturn_t retval = IRQ_HANDLED;
 
 	if (!dwc2_is_controller_alive(hsotg)) {
 		dev_warn(hsotg->dev, "Controller is dead\n");
 		return retval;
+	} else {
+		retval = IRQ_NONE;
 	}
 
 	spin_lock(&hsotg->lock);

drivers/usb/dwc2/params.c

···
 #include <linux/module.h>
 #include <linux/of_device.h>
 #include <linux/usb/of.h>
+#include <linux/pci_ids.h>
+#include <linux/pci.h>
 
 #include "core.h"
+
+#define PCI_PRODUCT_ID_HAPS_HSOTG	0xabc0
+#define PCI_DEVICE_ID_LOONGSON_DWC2	0x7a04
 
 static void dwc2_set_bcm_params(struct dwc2_hsotg *hsotg)
 {
···
 	p->phy_utmi_width = 16;
 	p->activate_ingenic_overcurrent_detection =
 		!device_property_read_bool(hsotg->dev, "disable-over-current");
+}
+
+static void dwc2_set_loongson_params(struct dwc2_hsotg *hsotg)
+{
+	struct dwc2_core_params *p = &hsotg->params;
+
+	p->phy_utmi_width = 8;
+	p->power_down = DWC2_POWER_DOWN_PARAM_PARTIAL;
 }
 
 static void dwc2_set_x1600_params(struct dwc2_hsotg *hsotg)
···
 	{ },
 };
 MODULE_DEVICE_TABLE(acpi, dwc2_acpi_match);
+
+const struct pci_device_id dwc2_pci_ids[] = {
+	{
+		PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, PCI_PRODUCT_ID_HAPS_HSOTG),
+	},
+	{
+		PCI_DEVICE(PCI_VENDOR_ID_STMICRO,
+			   PCI_DEVICE_ID_STMICRO_USB_OTG),
+	},
+	{
+		PCI_DEVICE(PCI_VENDOR_ID_LOONGSON, PCI_DEVICE_ID_LOONGSON_DWC2),
+		.driver_data = (unsigned long)dwc2_set_loongson_params,
+	},
+	{ /* end: all zeroes */ }
+};
+MODULE_DEVICE_TABLE(pci, dwc2_pci_ids);
+EXPORT_SYMBOL_GPL(dwc2_pci_ids);
 
 static void dwc2_set_param_otg_cap(struct dwc2_hsotg *hsotg)
 {
···
 	if (match && match->data) {
 		set_params = match->data;
 		set_params(hsotg);
-	} else {
+	} else if (!match) {
 		const struct acpi_device_id *amatch;
+		const struct pci_device_id *pmatch = NULL;
 
 		amatch = acpi_match_device(dwc2_acpi_match, hsotg->dev);
 		if (amatch && amatch->driver_data) {
 			set_params = (set_params_cb)amatch->driver_data;
+			set_params(hsotg);
+		} else if (!amatch)
+			pmatch = pci_match_id(dwc2_pci_ids, to_pci_dev(hsotg->dev->parent));
+
+		if (pmatch && pmatch->driver_data) {
+			set_params = (set_params_cb)pmatch->driver_data;
 			set_params(hsotg);
 		}
 	}

drivers/usb/dwc2/pci.c

···
 #include <linux/platform_device.h>
 #include <linux/usb/usb_phy_generic.h>
 
-#define PCI_PRODUCT_ID_HAPS_HSOTG	0xabc0
+#include "core.h"
 
 static const char dwc2_driver_name[] = "dwc2-pci";
 
···
 	platform_device_put(dwc2);
 	return ret;
 }
-
-static const struct pci_device_id dwc2_pci_ids[] = {
-	{
-		PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, PCI_PRODUCT_ID_HAPS_HSOTG),
-	},
-	{
-		PCI_DEVICE(PCI_VENDOR_ID_STMICRO,
-			   PCI_DEVICE_ID_STMICRO_USB_OTG),
-	},
-	{ /* end: all zeroes */ }
-};
-MODULE_DEVICE_TABLE(pci, dwc2_pci_ids);
 
 static struct pci_driver dwc2_pci_driver = {
 	.name = dwc2_driver_name,

drivers/usb/dwc2/platform.c

···
 #include <linux/clk.h>
 #include <linux/device.h>
 #include <linux/dma-mapping.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/mutex.h>
 #include <linux/platform_device.h>
 #include <linux/phy/phy.h>

drivers/usb/dwc3/Kconfig

···
 	  The Designware Core USB3 IP is programmed to operate in
 	  in USB 2.0 mode only.
 	  Say 'Y' or 'M' here if you have one such device
+
+config USB_DWC3_OCTEON
+	tristate "Cavium Octeon Platforms"
+	depends on CAVIUM_OCTEON_SOC || COMPILE_TEST
+	default USB_DWC3
+	help
+	  Support Cavium Octeon platforms with DesignWare Core USB3 IP.
+	  Only the host mode is currently supported.
+	  Say 'Y' or 'M' here if you have one such device.
+
 endif

drivers/usb/dwc3/Makefile

···
 obj-$(CONFIG_USB_DWC3_QCOM)		+= dwc3-qcom.o
 obj-$(CONFIG_USB_DWC3_IMX8MP)		+= dwc3-imx8mp.o
 obj-$(CONFIG_USB_DWC3_XILINX)		+= dwc3-xilinx.o
+obj-$(CONFIG_USB_DWC3_OCTEON)		+= dwc3-octeon.o

drivers/usb/dwc3/dwc3-am62.c

···
 
 #define DWC3_AM62_AUTOSUSPEND_DELAY	100
 
-struct dwc3_data {
+struct dwc3_am62 {
 	struct device *dev;
 	void __iomem *usbss;
 	struct clk *usb2_refclk;
···
 	52000,
 };
 
-static inline u32 dwc3_ti_readl(struct dwc3_data *data, u32 offset)
+static inline u32 dwc3_ti_readl(struct dwc3_am62 *am62, u32 offset)
 {
-	return readl((data->usbss) + offset);
+	return readl((am62->usbss) + offset);
 }
 
-static inline void dwc3_ti_writel(struct dwc3_data *data, u32 offset, u32 value)
+static inline void dwc3_ti_writel(struct dwc3_am62 *am62, u32 offset, u32 value)
 {
-	writel(value, (data->usbss) + offset);
+	writel(value, (am62->usbss) + offset);
 }
 
-static int phy_syscon_pll_refclk(struct dwc3_data *data)
+static int phy_syscon_pll_refclk(struct dwc3_am62 *am62)
 {
-	struct device *dev = data->dev;
+	struct device *dev = am62->dev;
 	struct device_node *node = dev->of_node;
 	struct of_phandle_args args;
 	struct regmap *syscon;
···
 		return PTR_ERR(syscon);
 	}
 
-	data->syscon = syscon;
+	am62->syscon = syscon;
 
 	ret = of_parse_phandle_with_fixed_args(node, "ti,syscon-phy-pll-refclk", 1,
 					       0, &args);
 	if (ret)
 		return ret;
 
-	data->offset = args.args[0];
+	am62->offset = args.args[0];
 
-	ret = regmap_update_bits(data->syscon, data->offset, PHY_PLL_REFCLK_MASK, data->rate_code);
+	ret = regmap_update_bits(am62->syscon, am62->offset, PHY_PLL_REFCLK_MASK, am62->rate_code);
 	if (ret) {
 		dev_err(dev, "failed to set phy pll reference clock rate\n");
 		return ret;
···
 {
 	struct device *dev = &pdev->dev;
 	struct device_node *node = pdev->dev.of_node;
-	struct dwc3_data *data;
+	struct dwc3_am62 *am62;
 	int i, ret;
 	unsigned long rate;
 	u32 reg;
 
-	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
-	if (!data)
+	am62 = devm_kzalloc(dev, sizeof(*am62), GFP_KERNEL);
+	if (!am62)
 		return -ENOMEM;
 
-	data->dev = dev;
-	platform_set_drvdata(pdev, data);
+	am62->dev = dev;
+	platform_set_drvdata(pdev, am62);
 
-	data->usbss = devm_platform_ioremap_resource(pdev, 0);
-	if (IS_ERR(data->usbss)) {
+	am62->usbss = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(am62->usbss)) {
 		dev_err(dev, "can't map IOMEM resource\n");
-		return PTR_ERR(data->usbss);
+		return PTR_ERR(am62->usbss);
 	}
 
-	data->usb2_refclk = devm_clk_get(dev, "ref");
-	if (IS_ERR(data->usb2_refclk)) {
+	am62->usb2_refclk = devm_clk_get(dev, "ref");
+	if (IS_ERR(am62->usb2_refclk)) {
 		dev_err(dev, "can't get usb2_refclk\n");
-		return PTR_ERR(data->usb2_refclk);
+		return PTR_ERR(am62->usb2_refclk);
 	}
 
 	/* Calculate the rate code */
-	rate = clk_get_rate(data->usb2_refclk);
+	rate = clk_get_rate(am62->usb2_refclk);
 	rate /= 1000;	// To KHz
 	for (i = 0; i < ARRAY_SIZE(dwc3_ti_rate_table); i++) {
 		if (dwc3_ti_rate_table[i] == rate)
···
 		return -EINVAL;
 	}
 
-	data->rate_code = i;
+	am62->rate_code = i;
 
 	/* Read the syscon property and set the rate code */
-	ret = phy_syscon_pll_refclk(data);
+	ret = phy_syscon_pll_refclk(am62);
 	if (ret)
 		return ret;
 
 	/* VBUS divider select */
-	data->vbus_divider = device_property_read_bool(dev, "ti,vbus-divider");
-	reg = dwc3_ti_readl(data, USBSS_PHY_CONFIG);
-	if (data->vbus_divider)
+	am62->vbus_divider = device_property_read_bool(dev, "ti,vbus-divider");
+	reg = dwc3_ti_readl(am62, USBSS_PHY_CONFIG);
+	if (am62->vbus_divider)
 		reg |= 1 << USBSS_PHY_VBUS_SEL_SHIFT;
 
-	dwc3_ti_writel(data, USBSS_PHY_CONFIG, reg);
+	dwc3_ti_writel(am62, USBSS_PHY_CONFIG, reg);
 
 	pm_runtime_set_active(dev);
 	pm_runtime_enable(dev);
···
 	 * Don't ignore its dependencies with its children
 	 */
 	pm_suspend_ignore_children(dev, false);
-	clk_prepare_enable(data->usb2_refclk);
+	clk_prepare_enable(am62->usb2_refclk);
 	pm_runtime_get_noresume(dev);
 
 	ret = of_platform_populate(node, NULL, NULL, dev);
···
 	}
 
 	/* Set mode valid bit to indicate role is valid */
-	reg = dwc3_ti_readl(data, USBSS_MODE_CONTROL);
+	reg = dwc3_ti_readl(am62, USBSS_MODE_CONTROL);
 	reg |= USBSS_MODE_VALID;
-	dwc3_ti_writel(data, USBSS_MODE_CONTROL, reg);
+	dwc3_ti_writel(am62, USBSS_MODE_CONTROL, reg);
 
 	/* Device has capability to wakeup system from sleep */
 	device_set_wakeup_capable(dev, true);
···
 	return 0;
 
 err_pm_disable:
-	clk_disable_unprepare(data->usb2_refclk);
+	clk_disable_unprepare(am62->usb2_refclk);
 	pm_runtime_disable(dev);
 	pm_runtime_set_suspended(dev);
 	return ret;
···
 static void dwc3_ti_remove(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct dwc3_data *data = platform_get_drvdata(pdev);
+	struct dwc3_am62 *am62 = platform_get_drvdata(pdev);
 	u32 reg;
 
 	device_for_each_child(dev, NULL, dwc3_ti_remove_core);
 
 	/* Clear mode valid bit */
-	reg = dwc3_ti_readl(data, USBSS_MODE_CONTROL);
+	reg = dwc3_ti_readl(am62, USBSS_MODE_CONTROL);
 	reg &= ~USBSS_MODE_VALID;
-	dwc3_ti_writel(data, USBSS_MODE_CONTROL, reg);
+	dwc3_ti_writel(am62, USBSS_MODE_CONTROL, reg);
 
 	pm_runtime_put_sync(dev);
-	clk_disable_unprepare(data->usb2_refclk);
+	clk_disable_unprepare(am62->usb2_refclk);
 	pm_runtime_disable(dev);
 	pm_runtime_set_suspended(dev);
-
-	platform_set_drvdata(pdev, NULL);
 }
 
 #ifdef CONFIG_PM
 static int dwc3_ti_suspend_common(struct device *dev)
 {
-	struct dwc3_data *data = dev_get_drvdata(dev);
+	struct dwc3_am62 *am62 = dev_get_drvdata(dev);
 	u32 reg, current_prtcap_dir;
 
 	if (device_may_wakeup(dev)) {
-		reg = dwc3_ti_readl(data, USBSS_CORE_STAT);
+		reg = dwc3_ti_readl(am62, USBSS_CORE_STAT);
 		current_prtcap_dir = (reg & USBSS_CORE_OPERATIONAL_MODE_MASK)
 				     >> USBSS_CORE_OPERATIONAL_MODE_SHIFT;
 		/* Set wakeup config enable bits */
-		reg = dwc3_ti_readl(data, USBSS_WAKEUP_CONFIG);
+		reg = dwc3_ti_readl(am62, USBSS_WAKEUP_CONFIG);
 		if (current_prtcap_dir == DWC3_GCTL_PRTCAP_HOST) {
 			reg = USBSS_WAKEUP_CFG_LINESTATE_EN | USBSS_WAKEUP_CFG_OVERCURRENT_EN;
 		} else {
···
 			 * and in U2/L3 state else it causes spurious wake-up.
 			 */
 		}
-		dwc3_ti_writel(data, USBSS_WAKEUP_CONFIG, reg);
+		dwc3_ti_writel(am62, USBSS_WAKEUP_CONFIG, reg);
 		/* clear wakeup status so we know what caused the wake up */
-		dwc3_ti_writel(data, USBSS_WAKEUP_STAT, USBSS_WAKEUP_STAT_CLR);
+		dwc3_ti_writel(am62, USBSS_WAKEUP_STAT, USBSS_WAKEUP_STAT_CLR);
 	}
 
-	clk_disable_unprepare(data->usb2_refclk);
+	clk_disable_unprepare(am62->usb2_refclk);
 
 	return 0;
 }
 
 static int dwc3_ti_resume_common(struct device *dev)
 {
-	struct dwc3_data *data = dev_get_drvdata(dev);
+	struct dwc3_am62 *am62 = dev_get_drvdata(dev);
 	u32 reg;
 
-	clk_prepare_enable(data->usb2_refclk);
+	clk_prepare_enable(am62->usb2_refclk);
 
 	if (device_may_wakeup(dev)) {
 		/* Clear wakeup config enable bits */
-		dwc3_ti_writel(data, USBSS_WAKEUP_CONFIG, USBSS_WAKEUP_CFG_NONE);
+		dwc3_ti_writel(am62, USBSS_WAKEUP_CONFIG, USBSS_WAKEUP_CFG_NONE);
 	}
 
-	reg = dwc3_ti_readl(data, USBSS_WAKEUP_STAT);
-	data->wakeup_stat = reg;
+	reg = dwc3_ti_readl(am62, USBSS_WAKEUP_STAT);
+	am62->wakeup_stat = reg;
 
 	return 0;
 }

drivers/usb/dwc3/dwc3-exynos.c

···
 	.suspend_clk_idx = 1,
 };
 
+static const struct dwc3_exynos_driverdata exynos850_drvdata = {
+	.clk_names = { "bus_early", "ref" },
+	.num_clks = 2,
+	.suspend_clk_idx = -1,
+};
+
 static const struct of_device_id exynos_dwc3_match[] = {
 	{
 		.compatible = "samsung,exynos5250-dwusb3",
···
 	}, {
 		.compatible = "samsung,exynos7-dwusb3",
 		.data = &exynos7_drvdata,
+	}, {
+		.compatible = "samsung,exynos850-dwusb3",
+		.data = &exynos850_drvdata,
 	}, {
 	}
 };

drivers/usb/dwc3/dwc3-imx8mp.c

···
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
···
 
 	pm_runtime_disable(dev);
 	pm_runtime_put_noidle(dev);
-	platform_set_drvdata(pdev, NULL);
 }
 
 static int __maybe_unused dwc3_imx8mp_suspend(struct dwc3_imx8mp *dwc3_imx,

drivers/usb/dwc3/dwc3-keystone.c

···
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/io.h>
+#include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/phy/phy.h>
 #include <linux/pm_runtime.h>
···
 	phy_power_off(kdwc->usb3_phy);
 	phy_exit(kdwc->usb3_phy);
 	phy_pm_runtime_put_sync(kdwc->usb3_phy);
-
-	platform_set_drvdata(pdev, NULL);
 }
 
 static const struct of_device_id kdwc3_of_match[] = {

drivers/usb/dwc3/dwc3-meson-g12a.c

···
 			return ret;
 	}
 
+	if (priv->drvdata->usb_post_init) {
+		ret = priv->drvdata->usb_post_init(priv);
+		if (ret)
+			return ret;
+	}
+
 	return 0;
 }
 

drivers/usb/dwc3/dwc3-of-simple.c

···
 
 static const struct of_device_id of_dwc3_simple_match[] = {
 	{ .compatible = "rockchip,rk3399-dwc3" },
-	{ .compatible = "cavium,octeon-7130-usb-uctl" },
 	{ .compatible = "sprd,sc9860-dwc3" },
 	{ .compatible = "allwinner,sun50i-h6-dwc3" },
 	{ .compatible = "hisilicon,hi3670-dwc3" },

drivers/usb/gadget/Kconfig

···
 config USB_F_MIDI
 	tristate
 
+config USB_F_MIDI2
+	tristate
+
 config USB_F_HID
 	tristate
 
···
 	  a sound "card" in the ALSA sound system. Other MIDI
 	  connections can then be made on the gadget system, using
 	  ALSA's aconnect utility etc.
+
+config USB_CONFIGFS_F_MIDI2
+	bool "MIDI 2.0 function"
+	depends on USB_CONFIGFS
+	depends on SND
+	select USB_LIBCOMPOSITE
+	select SND_UMP
+	select SND_UMP_LEGACY_RAWMIDI
+	select USB_F_MIDI2
+	help
+	  The MIDI 2.0 function driver provides the generic emulated
+	  USB MIDI 2.0 interface, looped back to ALSA UMP rawmidi
+	  device on the gadget host. It supports UMP 1.1 spec and
+	  responds UMP Stream messages for UMP Endpoint and Function
+	  Block information / configuration.
 
 config USB_CONFIGFS_F_HID
 	bool "HID function"

drivers/usb/gadget/composite.c

···
 	/* select desired speed */
 	switch (g->speed) {
 	case USB_SPEED_SUPER_PLUS:
-		if (gadget_is_superspeed_plus(g)) {
-			if (f->ssp_descriptors) {
-				speed_desc = f->ssp_descriptors;
-				want_comp_desc = 1;
-				break;
-			}
-			incomplete_desc = true;
+		if (f->ssp_descriptors) {
+			speed_desc = f->ssp_descriptors;
+			want_comp_desc = 1;
+			break;
 		}
+		incomplete_desc = true;
 		fallthrough;
 	case USB_SPEED_SUPER:
-		if (gadget_is_superspeed(g)) {
-			if (f->ss_descriptors) {
-				speed_desc = f->ss_descriptors;
-				want_comp_desc = 1;
-				break;
-			}
-			incomplete_desc = true;
+		if (f->ss_descriptors) {
+			speed_desc = f->ss_descriptors;
+			want_comp_desc = 1;
+			break;
 		}
+		incomplete_desc = true;
 		fallthrough;
 	case USB_SPEED_HIGH:
-		if (gadget_is_dualspeed(g)) {
-			if (f->hs_descriptors) {
-				speed_desc = f->hs_descriptors;
-				break;
-			}
-			incomplete_desc = true;
+		if (f->hs_descriptors) {
+			speed_desc = f->hs_descriptors;
+			break;
 		}
+		incomplete_desc = true;
 		fallthrough;
 	default:
 		speed_desc = f->fs_descriptors;

drivers/usb/gadget/config.c

···
 		struct usb_descriptor_header **ss,
 		struct usb_descriptor_header **ssp)
 {
-	struct usb_gadget *g = f->config->cdev->gadget;
-
 	/* super-speed-plus descriptor falls back to super-speed one,
 	 * if such a descriptor was provided, thus avoiding a NULL
 	 * pointer dereference if a 5gbps capable gadget is used with
···
 		if (!f->fs_descriptors)
 			goto err;
 	}
-	if (hs && gadget_is_dualspeed(g)) {
+	if (hs) {
 		f->hs_descriptors = usb_copy_descriptors(hs);
 		if (!f->hs_descriptors)
 			goto err;
 	}
-	if (ss && gadget_is_superspeed(g)) {
+	if (ss) {
 		f->ss_descriptors = usb_copy_descriptors(ss);
 		if (!f->ss_descriptors)
 			goto err;
 	}
-	if (ssp && gadget_is_superspeed_plus(g)) {
+	if (ssp) {
 		f->ssp_descriptors = usb_copy_descriptors(ssp);
 		if (!f->ssp_descriptors)
 			goto err;

drivers/usb/gadget/function/Makefile

···
 obj-$(CONFIG_USB_F_UVC)		+= usb_f_uvc.o
 usb_f_midi-y			:= f_midi.o
 obj-$(CONFIG_USB_F_MIDI)	+= usb_f_midi.o
+usb_f_midi2-y			:= f_midi2.o
+obj-$(CONFIG_USB_F_MIDI2)	+= usb_f_midi2.o
 usb_f_hid-y			:= f_hid.o
 obj-$(CONFIG_USB_F_HID)		+= usb_f_hid.o
 usb_f_printer-y			:= f_printer.o

drivers/usb/gadget/function/f_acm.c

···
 		goto fail;
 
 	dev_dbg(&cdev->gadget->dev,
-		"acm ttyGS%d: %s speed IN/%s OUT/%s NOTIFY/%s\n",
+		"acm ttyGS%d: IN/%s OUT/%s NOTIFY/%s\n",
 		acm->port_num,
-		gadget_is_superspeed(c->cdev->gadget) ? "super" :
-		gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
 		acm->port.in->name, acm->port.out->name,
 		acm->notify->name);
 	return 0;

drivers/usb/gadget/function/f_ecm.c

···
 	return container_of(f, struct f_ecm, port.func);
 }
 
-/* peak (theoretical) bulk transfer rate in bits-per-second */
-static inline unsigned ecm_bitrate(struct usb_gadget *g)
-{
-	if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER)
-		return 13 * 1024 * 8 * 1000 * 8;
-	else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
-		return 13 * 512 * 8 * 1000 * 8;
-	else
-		return 19 * 64 * 1 * 1000 * 8;
-}
-
 /*-------------------------------------------------------------------------*/
 
 /*
···
 
 		/* SPEED_CHANGE data is up/down speeds in bits/sec */
 		data = req->buf + sizeof *event;
-		data[0] = cpu_to_le32(ecm_bitrate(cdev->gadget));
+		data[0] = cpu_to_le32(gether_bitrate(cdev->gadget));
 		data[1] = data[0];
 
-		DBG(cdev, "notify speed %d\n", ecm_bitrate(cdev->gadget));
+		DBG(cdev, "notify speed %d\n", gether_bitrate(cdev->gadget));
 		ecm->notify_state = ECM_NOTIFY_NONE;
 		break;
 	}
···
 	ecm->port.open = ecm_open;
 	ecm->port.close = ecm_close;
 
-	DBG(cdev, "CDC Ethernet: %s speed IN/%s OUT/%s NOTIFY/%s\n",
-			gadget_is_superspeed(c->cdev->gadget) ? "super" :
-			gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
+	DBG(cdev, "CDC Ethernet: IN/%s OUT/%s NOTIFY/%s\n",
 			ecm->port.in_ep->name, ecm->port.out_ep->name,
 			ecm->notify->name);
 	return 0;

drivers/usb/gadget/function/f_eem.c

···
 	if (status)
 		goto fail;
 
-	DBG(cdev, "CDC Ethernet (EEM): %s speed IN/%s OUT/%s\n",
-			gadget_is_superspeed(c->cdev->gadget) ? "super" :
-			gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
+	DBG(cdev, "CDC Ethernet (EEM): IN/%s OUT/%s\n",
 			eem->port.in_ep->name, eem->port.out_ep->name);
 	return 0;
 

drivers/usb/gadget/function/f_loopback.c

···
 	if (ret)
 		return ret;
 
-	DBG(cdev, "%s speed %s: IN/%s, OUT/%s\n",
-	    (gadget_is_superspeed(c->cdev->gadget) ? "super" :
-	     (gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full")),
+	DBG(cdev, "%s: IN/%s, OUT/%s\n",
 			f->name, loop->in_ep->name, loop->out_ep->name);
 	return 0;
 }

drivers/usb/gadget/function/f_mass_storage.c

···
 {
 	struct file	*filp = curlun->filp;
 	struct inode	*inode = file_inode(filp);
-	unsigned long	rc;
+	unsigned long __maybe_unused	rc;
 
 	rc = invalidate_mapping_pages(inode->i_mapping, 0, -1);
 	VLDBG(curlun, "invalidate_mapping_pages -> %ld\n", rc);

drivers/usb/gadget/function/f_midi.c

···
 	if (!f->fs_descriptors)
 		goto fail_f_midi;
 
-	if (gadget_is_dualspeed(c->cdev->gadget)) {
-		bulk_in_desc.wMaxPacketSize = cpu_to_le16(512);
-		bulk_out_desc.wMaxPacketSize = cpu_to_le16(512);
-		f->hs_descriptors = usb_copy_descriptors(midi_function);
-		if (!f->hs_descriptors)
-			goto fail_f_midi;
-	}
+	bulk_in_desc.wMaxPacketSize = cpu_to_le16(512);
+	bulk_out_desc.wMaxPacketSize = cpu_to_le16(512);
+	f->hs_descriptors = usb_copy_descriptors(midi_function);
+	if (!f->hs_descriptors)
+		goto fail_f_midi;
 
-	if (gadget_is_superspeed(c->cdev->gadget)) {
-		bulk_in_desc.wMaxPacketSize = cpu_to_le16(1024);
-		bulk_out_desc.wMaxPacketSize = cpu_to_le16(1024);
-		i = endpoint_descriptor_index;
-		midi_function[i++] = (struct usb_descriptor_header *)
-				     &bulk_out_desc;
-		midi_function[i++] = (struct usb_descriptor_header *)
-				     &bulk_out_ss_comp_desc;
-		midi_function[i++] = (struct usb_descriptor_header *)
-				     &ms_out_desc;
-		midi_function[i++] = (struct usb_descriptor_header *)
-				     &bulk_in_desc;
-		midi_function[i++] = (struct usb_descriptor_header *)
-				     &bulk_in_ss_comp_desc;
-		midi_function[i++] = (struct usb_descriptor_header *)
-				     &ms_in_desc;
-		f->ss_descriptors = usb_copy_descriptors(midi_function);
-		if (!f->ss_descriptors)
-			goto fail_f_midi;
-
-		if (gadget_is_superspeed_plus(c->cdev->gadget)) {
-			f->ssp_descriptors = usb_copy_descriptors(midi_function);
-			if (!f->ssp_descriptors)
-				goto fail_f_midi;
-		}
-	}
+	bulk_in_desc.wMaxPacketSize = cpu_to_le16(1024);
+	bulk_out_desc.wMaxPacketSize = cpu_to_le16(1024);
+	i = endpoint_descriptor_index;
+	midi_function[i++] = (struct usb_descriptor_header *)
+			     &bulk_out_desc;
+	midi_function[i++] = (struct usb_descriptor_header *)
+			     &bulk_out_ss_comp_desc;
+	midi_function[i++] = (struct usb_descriptor_header *)
+			     &ms_out_desc;
+	midi_function[i++] = (struct usb_descriptor_header *)
+			     &bulk_in_desc;
+	midi_function[i++] = (struct usb_descriptor_header *)
+			     &bulk_in_ss_comp_desc;
+	midi_function[i++] = (struct usb_descriptor_header *)
+			     &ms_in_desc;
+	f->ss_descriptors = usb_copy_descriptors(midi_function);
+	if (!f->ss_descriptors)
+		goto fail_f_midi;
 
 	kfree(midi_function);
 

drivers/usb/gadget/function/f_midi2.c

···
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * f_midi2.c -- USB MIDI 2.0 class function driver
+ */
+
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/ump.h>
+#include <sound/ump_msg.h>
+#include <sound/ump_convert.h>
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/audio.h>
+#include <linux/usb/midi-v2.h>
+
+#include "u_f.h"
+#include "u_midi2.h"
+
+struct f_midi2;
+struct f_midi2_ep;
+struct f_midi2_usb_ep;
+
+/* Context for each USB request */
+struct f_midi2_req_ctx {
+	struct f_midi2_usb_ep *usb_ep;	/* belonging USB EP */
+	unsigned int index;		/* array index: 0-31 */
+	struct usb_request *req;	/* assigned request */
+};
+
+/* Resources for a USB Endpoint */
+struct f_midi2_usb_ep {
+	struct f_midi2 *card;		/* belonging card */
+	struct f_midi2_ep *ep;		/* belonging UMP EP (optional) */
+	struct usb_ep *usb_ep;		/* assigned USB EP */
+	void (*complete)(struct usb_ep *usb_ep, struct usb_request *req);
+	unsigned long free_reqs;	/* bitmap for unused requests */
+	unsigned int num_reqs;		/* number of allocated requests */
+	struct f_midi2_req_ctx *reqs;	/* request context array */
+};
+
+/* Resources for UMP Function Block (and USB Group Terminal Block) */
+struct f_midi2_block {
+	struct f_midi2_block_info info;	/* FB info, copied from configfs */
+	struct snd_ump_block *fb;	/* assigned FB */
+	unsigned int gtb_id;		/* assigned GTB id */
+	unsigned int string_id;		/* assigned string id */
+};
+
+/* Temporary buffer for altset 0 MIDI 1.0 handling */
+struct f_midi2_midi1_port {
+	unsigned int pending; /* pending bytes on the input buffer */
+	u8 buf[32];	/* raw MIDI 1.0 byte input */
+	u8 state;	/* running status */
+	u8 data[2];	/* rendered USB MIDI 1.0 packet data */
+};
+
+/* MIDI 1.0 message states */
+enum {
+	STATE_INITIAL = 0,	/* pseudo state */
+	STATE_1PARAM,
+	STATE_2PARAM_1,
+	STATE_2PARAM_2,
+	STATE_SYSEX_0,
+	STATE_SYSEX_1,
+	STATE_SYSEX_2,
+	STATE_REAL_TIME,
+	STATE_FINISHED,		/* pseudo state */
+};
+
+/* Resources for UMP Endpoint */
+struct f_midi2_ep {
+	struct snd_ump_endpoint *ump;	/* assigned UMP EP */
+	struct f_midi2 *card;		/* belonging MIDI 2.0 device */
+
+	struct f_midi2_ep_info info;	/* UMP EP info, copied from configfs */
+	unsigned int num_blks;		/* number of FBs */
+	struct f_midi2_block blks[SNDRV_UMP_MAX_BLOCKS];	/* UMP FBs */
+
+	struct f_midi2_usb_ep ep_in;	/* USB MIDI EP-in */
+	struct f_midi2_usb_ep ep_out;	/* USB MIDI EP-out */
+
+	u8 in_group_to_cable[SNDRV_UMP_MAX_GROUPS]; /* map to cable; 1-based! */
+};
+
+/* indices for USB strings */
+enum {
+	STR_IFACE = 0,
+	STR_GTB1 = 1,
+};
+
+/* 1-based GTB id to string id */
+#define gtb_to_str_id(id)	(STR_GTB1 + (id) - 1)
+
+/* mapping from MIDI 1.0 cable to UMP group */
+struct midi1_cable_mapping {
+	struct f_midi2_ep *ep;
+	unsigned char block;
+	unsigned char group;
+};
+
+/* operation mode */
+enum {
+	MIDI_OP_MODE_UNSET,	/* no altset set yet */
+	MIDI_OP_MODE_MIDI1,	/* MIDI 1.0 (altset 0) is used */
+	MIDI_OP_MODE_MIDI2,	/* MIDI 2.0 (altset 1) is used */
+};
+
+/* Resources for MIDI 2.0 Device */
+struct f_midi2 {
+	struct usb_function func;
+	struct usb_gadget *gadget;
+	struct snd_card *card;
+
+	/* MIDI 1.0 in/out USB EPs */
+	struct f_midi2_usb_ep midi1_ep_in;
+	struct f_midi2_usb_ep midi1_ep_out;
+
+	/* number of MIDI 1.0 I/O cables */
+	unsigned int num_midi1_in;
+	unsigned int num_midi1_out;
+
+	/* conversion for MIDI 1.0 EP-in */
+	struct f_midi2_midi1_port midi1_port[MAX_CABLES];
+	/* conversion for MIDI 1.0 EP-out */
+	struct ump_cvt_to_ump midi1_ump_cvt;
+	/* mapping between cables and UMP groups */
+	struct midi1_cable_mapping in_cable_mapping[MAX_CABLES];
+	struct midi1_cable_mapping out_cable_mapping[MAX_CABLES];
+
+	int midi_if;			/* USB MIDI interface number */
+	int operation_mode;		/* current operation mode */
+
+	spinlock_t queue_lock;
+
+	struct f_midi2_card_info info;	/* card info, copied from configfs */
+
+	unsigned int num_eps;
+	struct f_midi2_ep midi2_eps[MAX_UMP_EPS];
+
+	unsigned int total_blocks;	/* total number of blocks of all EPs */
+	struct usb_string *string_defs;
+	struct usb_string *strings;
+};
+
+#define func_to_midi2(f)	container_of(f, struct f_midi2, func)
+
+/* get EP name string */
+static const char *ump_ep_name(const struct f_midi2_ep *ep)
+{
+	return ep->info.ep_name ? ep->info.ep_name : "MIDI 2.0 Gadget";
+}
+
+/* get EP product ID string */
+static const char *ump_product_id(const struct f_midi2_ep *ep)
+{
+	return ep->info.product_id ? ep->info.product_id : "Unique Product ID";
+}
+
+/* get FB name string */
+static const char *ump_fb_name(const struct f_midi2_block_info *info)
+{
+	return info->name ? info->name : "MIDI 2.0 Gadget I/O";
+}
+
+/*
+ * USB Descriptor Definitions
+ */
+/* GTB header descriptor */
+static struct usb_ms20_gr_trm_block_header_descriptor gtb_header_desc = {
+	.bLength =		sizeof(gtb_header_desc),
+	.bDescriptorType =	USB_DT_CS_GR_TRM_BLOCK,
+	.bDescriptorSubtype =	USB_MS_GR_TRM_BLOCK_HEADER,
+	.wTotalLength =		__cpu_to_le16(0x12), // to be filled
+};
+
+/* GTB descriptor template: most items are replaced dynamically */
+static struct usb_ms20_gr_trm_block_descriptor gtb_desc = {
+	.bLength =		sizeof(gtb_desc),
+	.bDescriptorType =	USB_DT_CS_GR_TRM_BLOCK,
+	.bDescriptorSubtype =	USB_MS_GR_TRM_BLOCK,
+	.bGrpTrmBlkID =		0x01,
+	.bGrpTrmBlkType =	USB_MS_GR_TRM_BLOCK_TYPE_BIDIRECTIONAL,
+	.nGroupTrm =		0x00,
+	.nNumGroupTrm =		1,
+	.iBlockItem =		0,
+	.bMIDIProtocol =	USB_MS_MIDI_PROTO_1_0_64,
+	.wMaxInputBandwidth =	0,
+	.wMaxOutputBandwidth =	0,
+};
+
+DECLARE_USB_MIDI_OUT_JACK_DESCRIPTOR(1);
+DECLARE_USB_MS_ENDPOINT_DESCRIPTOR(16);
+DECLARE_UAC_AC_HEADER_DESCRIPTOR(1);
+DECLARE_USB_MS20_ENDPOINT_DESCRIPTOR(32);
+
+#define EP_MAX_PACKET_INT	8
+
+/* Audio Control Interface */
+static struct usb_interface_descriptor midi2_audio_if_desc = {
+	.bLength =		USB_DT_INTERFACE_SIZE,
+	.bDescriptorType =	USB_DT_INTERFACE,
+	.bInterfaceNumber =	0, // to be filled
+	.bNumEndpoints =	0,
+	.bInterfaceClass =	USB_CLASS_AUDIO,
+	.bInterfaceSubClass =	USB_SUBCLASS_AUDIOCONTROL,
+	.bInterfaceProtocol =	0,
+	.iInterface =		0,
+};
+
+static struct uac1_ac_header_descriptor_1 midi2_audio_class_desc = {
+	.bLength =		0x09,
+	.bDescriptorType =	USB_DT_CS_INTERFACE,
+	.bDescriptorSubtype =	0x01,
+	.bcdADC =		__cpu_to_le16(0x0100),
+	.wTotalLength =		__cpu_to_le16(0x0009),
+	.bInCollection =	0x01,
+	.baInterfaceNr =	{ 0x01 }, // to be filled
+};
+
+/* MIDI 1.0 Streaming Interface (altset 0) */
+static struct usb_interface_descriptor midi2_midi1_if_desc = {
+	.bLength =		USB_DT_INTERFACE_SIZE,
+	.bDescriptorType =	USB_DT_INTERFACE,
+	.bInterfaceNumber =	0, // to be filled
+	.bAlternateSetting =	0,
+	.bNumEndpoints =	2, // to be filled
+	.bInterfaceClass =	USB_CLASS_AUDIO,
+	.bInterfaceSubClass =	USB_SUBCLASS_MIDISTREAMING,
+	.bInterfaceProtocol =	0,
+	.iInterface =		0, // to be filled
+};
+
+static struct usb_ms_header_descriptor midi2_midi1_class_desc = {
+	.bLength =		0x07,
+	.bDescriptorType =	USB_DT_CS_INTERFACE,
+	.bDescriptorSubtype =	USB_MS_HEADER,
+	.bcdMSC =		__cpu_to_le16(0x0100),
+	.wTotalLength =		__cpu_to_le16(0x41), // to be calculated
+};
+
+/* MIDI 1.0 EP OUT */
+static struct usb_endpoint_descriptor midi2_midi1_ep_out_desc = {
+	.bLength =		USB_DT_ENDPOINT_AUDIO_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bEndpointAddress =	USB_DIR_OUT | 0, // set up dynamically
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+};
+
+static struct usb_ss_ep_comp_descriptor midi2_midi1_ep_out_ss_comp_desc = {
+	.bLength                = sizeof(midi2_midi1_ep_out_ss_comp_desc),
+	.bDescriptorType        = USB_DT_SS_ENDPOINT_COMP,
+};
+
+static struct usb_ms_endpoint_descriptor_16 midi2_midi1_ep_out_class_desc = {
+	.bLength =		0x05, // to be filled
+	.bDescriptorType =	USB_DT_CS_ENDPOINT,
+	.bDescriptorSubtype =	USB_MS_GENERAL,
+	.bNumEmbMIDIJack =	1,
+	.baAssocJackID =	{ 0x01 },
+};
+
+/* MIDI 1.0 EP IN */
+static struct usb_endpoint_descriptor midi2_midi1_ep_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_AUDIO_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bEndpointAddress =	USB_DIR_IN | 0, // set up dynamically
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+};
+
+static struct usb_ss_ep_comp_descriptor midi2_midi1_ep_in_ss_comp_desc = {
+	.bLength                = sizeof(midi2_midi1_ep_in_ss_comp_desc),
+	.bDescriptorType        = USB_DT_SS_ENDPOINT_COMP,
+};
+
+static struct usb_ms_endpoint_descriptor_16 midi2_midi1_ep_in_class_desc = {
+	.bLength =		0x05, // to be filled
+	.bDescriptorType =	USB_DT_CS_ENDPOINT,
+	.bDescriptorSubtype =	USB_MS_GENERAL,
+	.bNumEmbMIDIJack =	1,
+	.baAssocJackID =	{ 0x03 },
+};
+
+/* MIDI 2.0 Streaming Interface (altset 1) */
+static struct usb_interface_descriptor midi2_midi2_if_desc = {
+	.bLength =		USB_DT_INTERFACE_SIZE,
+	.bDescriptorType =	USB_DT_INTERFACE,
+	.bInterfaceNumber =	0, // to be filled
+	.bAlternateSetting =	1,
+	.bNumEndpoints =	2, // to be filled
+	.bInterfaceClass =	USB_CLASS_AUDIO,
+	.bInterfaceSubClass =	USB_SUBCLASS_MIDISTREAMING,
+	.bInterfaceProtocol =	0,
+	.iInterface =		0, // to be filled
+};
+
+static struct usb_ms_header_descriptor midi2_midi2_class_desc = {
+	.bLength =		0x07,
+	.bDescriptorType =	USB_DT_CS_INTERFACE,
+	.bDescriptorSubtype =	USB_MS_HEADER,
+	.bcdMSC =		__cpu_to_le16(0x0200),
+	.wTotalLength =		__cpu_to_le16(0x07),
+};
+
+/* MIDI 2.0 EP OUT */
+static struct usb_endpoint_descriptor midi2_midi2_ep_out_desc[MAX_UMP_EPS];
+
+static struct usb_ss_ep_comp_descriptor midi2_midi2_ep_out_ss_comp_desc = {
+	.bLength                = sizeof(midi2_midi1_ep_out_ss_comp_desc),
+	.bDescriptorType        = USB_DT_SS_ENDPOINT_COMP,
+};
+
+static struct usb_ms20_endpoint_descriptor_32 midi2_midi2_ep_out_class_desc[MAX_UMP_EPS];
+
+/* MIDI 2.0 EP IN */
+static struct usb_endpoint_descriptor midi2_midi2_ep_in_desc[MAX_UMP_EPS];
+
+static struct usb_ss_ep_comp_descriptor midi2_midi2_ep_in_ss_comp_desc = {
+	.bLength                = sizeof(midi2_midi2_ep_in_ss_comp_desc),
+	.bDescriptorType        = USB_DT_SS_ENDPOINT_COMP,
+};
+
+static struct usb_ms20_endpoint_descriptor_32 midi2_midi2_ep_in_class_desc[MAX_UMP_EPS];
+
+/* Arrays of descriptors to be created */
+static void *midi2_audio_descs[] = {
+	&midi2_audio_if_desc,
+	&midi2_audio_class_desc,
+	NULL
+};
+
+static void *midi2_midi1_descs[] = {
+	&midi2_midi1_if_desc,
+	&midi2_midi1_class_desc,
+	NULL
+};
+
+static void *midi2_midi1_ep_out_descs[] = {
+	&midi2_midi1_ep_out_desc,
+	&midi2_midi1_ep_out_class_desc,
+	NULL
+};
+
+static void *midi2_midi1_ep_in_descs[] = {
+	&midi2_midi1_ep_in_desc,
+	&midi2_midi1_ep_in_class_desc,
+	NULL
+};
+
+static void *midi2_midi1_ep_out_ss_descs[] = {
+	&midi2_midi1_ep_out_desc,
+	&midi2_midi1_ep_out_ss_comp_desc,
+	&midi2_midi1_ep_out_class_desc,
+	NULL
+};
+
+static void *midi2_midi1_ep_in_ss_descs[] = {
+	&midi2_midi1_ep_in_desc,
+	&midi2_midi1_ep_in_ss_comp_desc,
+	&midi2_midi1_ep_in_class_desc,
+	NULL
+};
+
+static void *midi2_midi2_descs[] = {
+	&midi2_midi2_if_desc,
+	&midi2_midi2_class_desc,
+	NULL
+};
+
+/*
+ * USB request handling
+ */
+
+/* get an empty request for the given EP */
+static struct usb_request *get_empty_request(struct f_midi2_usb_ep *usb_ep)
+{
+	struct usb_request *req = NULL;
+	unsigned long flags;
+	int index;
+
+	spin_lock_irqsave(&usb_ep->card->queue_lock, flags);
+	if (!usb_ep->free_reqs)
+		goto unlock;
+	index = find_first_bit(&usb_ep->free_reqs, usb_ep->num_reqs);
+	if (index >= usb_ep->num_reqs)
+		goto unlock;
+	req = usb_ep->reqs[index].req;
+	if (!req)
+		goto unlock;
+	clear_bit(index, &usb_ep->free_reqs);
+	req->length = 0;
+ unlock:
+	spin_unlock_irqrestore(&usb_ep->card->queue_lock, flags);
+	return req;
+}
+
+/* put the empty request back */
+static void put_empty_request(struct usb_request *req)
+{
+	struct f_midi2_req_ctx *ctx = req->context;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ctx->usb_ep->card->queue_lock, flags);
+	set_bit(ctx->index, &ctx->usb_ep->free_reqs);
+	spin_unlock_irqrestore(&ctx->usb_ep->card->queue_lock, flags);
+}
+
+/*
+ * UMP v1.1 Stream message handling
+ */
+
+/* queue a request to UMP EP; request is either queued or freed after this */
+static int queue_request_ep_raw(struct usb_request *req)
+{
+	struct f_midi2_req_ctx *ctx = req->context;
+	int err;
+
+	req->complete = ctx->usb_ep->complete;
+	err = usb_ep_queue(ctx->usb_ep->usb_ep, req, GFP_ATOMIC);
+	if (err) {
+		put_empty_request(req);
+		return err;
+	}
+	return 0;
+}
+
+/* queue a request with endianness conversion */
+static int queue_request_ep_in(struct usb_request *req)
+{
+	/* UMP packets have to be converted to little-endian */
+	cpu_to_le32_array((u32 *)req->buf, req->length >> 2);
+	return queue_request_ep_raw(req);
+}
+
+/* reply a UMP packet via EP-in */
+static int reply_ep_in(struct f_midi2_ep *ep, const void *buf, int len)
+{
+	struct f_midi2_usb_ep *usb_ep = &ep->ep_in;
+	struct usb_request *req;
+
+	req = get_empty_request(usb_ep);
+	if (!req)
+		return -ENOSPC;
+
+	req->length = len;
+	memcpy(req->buf, buf, len);
+	return queue_request_ep_in(req);
+}
+
+/* reply a UMP stream EP info */
+static void reply_ump_stream_ep_info(struct f_midi2_ep *ep)
+{
+	struct snd_ump_stream_msg_ep_info rep = {
+		.type = UMP_MSG_TYPE_STREAM,
+		.status = UMP_STREAM_MSG_STATUS_EP_INFO,
+		.ump_version_major = 0x01,
+		.ump_version_minor = 0x01,
+		.num_function_blocks = ep->num_blks,
+		.static_function_block = !!ep->card->info.static_block,
+		.protocol = (UMP_STREAM_MSG_EP_INFO_CAP_MIDI1 |
+			     UMP_STREAM_MSG_EP_INFO_CAP_MIDI2) >> 8,
+	};
+
+	reply_ep_in(ep, &rep, sizeof(rep));
+}
+
+/* reply a UMP EP device info */
+static void reply_ump_stream_ep_device(struct f_midi2_ep *ep)
+{
+	struct snd_ump_stream_msg_devince_info rep = {
+		.type = UMP_MSG_TYPE_STREAM,
+		.status = UMP_STREAM_MSG_STATUS_DEVICE_INFO,
+		.manufacture_id = ep->info.manufacturer,
+		.family_lsb = ep->info.family & 0xff,
+		.family_msb = (ep->info.family >> 8) & 0xff,
+		.model_lsb = ep->info.model & 0xff,
+		.model_msb = (ep->info.model >> 8) & 0xff,
+		.sw_revision = ep->info.sw_revision,
+	};
+
+	reply_ep_in(ep, &rep, sizeof(rep));
+}
+
+#define UMP_STREAM_PKT_BYTES	16	/* UMP stream packet size = 16 bytes*/
+#define UMP_STREAM_EP_STR_OFF	2	/* offset of name string for EP info */
+#define UMP_STREAM_FB_STR_OFF	3	/* offset of name string for FB info */
+
+/* Helper to replay a string */
+static void reply_ump_stream_string(struct f_midi2_ep *ep, const u8 *name,
+				    unsigned int type, unsigned int extra,
+				    unsigned int start_ofs)
+{
+	struct f_midi2_usb_ep *usb_ep = &ep->ep_in;
+	struct f_midi2 *midi2 = ep->card;
+	struct usb_request *req;
+	unsigned int pos;
+	u32 *buf;
+
+	if (!*name)
+		return;
+	req = get_empty_request(usb_ep);
+	if (!req)
+		return;
+
+	buf = (u32 *)req->buf;
+	pos = start_ofs;
+	for (;;) {
+		if (pos == start_ofs) {
+			memset(buf, 0, UMP_STREAM_PKT_BYTES);
+			buf[0] = ump_stream_compose(type, 0) | extra;
+		}
+		buf[pos / 4] |= *name++ << ((3 - (pos % 4)) * 8);
+		if (!*name) {
+			if (req->length)
+				buf[0] |= UMP_STREAM_MSG_FORMAT_END << 26;
+			req->length += UMP_STREAM_PKT_BYTES;
+			break;
+		}
+		if (++pos == UMP_STREAM_PKT_BYTES) {
+			if (!req->length)
+				buf[0] |= UMP_STREAM_MSG_FORMAT_START << 26;
+			else
+				buf[0] |= UMP_STREAM_MSG_FORMAT_CONTINUE << 26;
+			req->length += UMP_STREAM_PKT_BYTES;
+			if (midi2->info.req_buf_size - req->length < UMP_STREAM_PKT_BYTES)
+				break;
+			buf += 4;
+			pos = start_ofs;
+		}
+	}
+
+	if (req->length)
+		queue_request_ep_in(req);
+	else
+		put_empty_request(req);
+}
+
+/* Reply a UMP EP name string */
+static void reply_ump_stream_ep_name(struct f_midi2_ep *ep)
+{
+	reply_ump_stream_string(ep, ump_ep_name(ep),
+				UMP_STREAM_MSG_STATUS_EP_NAME, 0,
+				UMP_STREAM_EP_STR_OFF);
+}
+
+/* Reply a UMP EP product ID string */
+static void reply_ump_stream_ep_pid(struct f_midi2_ep *ep)
+{
+	reply_ump_stream_string(ep, ump_product_id(ep),
+				UMP_STREAM_MSG_STATUS_PRODUCT_ID, 0,
+				UMP_STREAM_EP_STR_OFF);
+}
+
+/* Reply a UMP EP stream config */
+static void reply_ump_stream_ep_config(struct f_midi2_ep *ep)
+{
+	struct snd_ump_stream_msg_stream_cfg rep = {
+		.type = UMP_MSG_TYPE_STREAM,
+		.status = UMP_STREAM_MSG_STATUS_STREAM_CFG,
+	};
+
+	if ((ep->info.protocol & SNDRV_UMP_EP_INFO_PROTO_MIDI_MASK) ==
+	    SNDRV_UMP_EP_INFO_PROTO_MIDI2)
+		rep.protocol = UMP_STREAM_MSG_EP_INFO_CAP_MIDI2 >> 8;
+	else
+		rep.protocol = UMP_STREAM_MSG_EP_INFO_CAP_MIDI1 >> 8;
+
+	reply_ep_in(ep, &rep, sizeof(rep));
+}
+
+/* Reply a UMP FB info */
+static void reply_ump_stream_fb_info(struct f_midi2_ep *ep, int blk)
+{
+	struct f_midi2_block_info *b = &ep->blks[blk].info;
+	struct snd_ump_stream_msg_fb_info rep = {
+		.type = UMP_MSG_TYPE_STREAM,
+		.status = UMP_STREAM_MSG_STATUS_FB_INFO,
+		.active = !!b->active,
+		.function_block_id = blk,
+		.ui_hint = b->ui_hint,
+		.midi_10 = b->is_midi1,
+		.direction = b->direction,
+		.first_group = b->first_group,
+		.num_groups = b->num_groups,
+		.midi_ci_version = b->midi_ci_version,
+		.sysex8_streams = b->sysex8_streams,
+	};
+
+	reply_ep_in(ep, &rep, sizeof(rep));
+}
+
+/* Reply a FB name string */
+static void reply_ump_stream_fb_name(struct f_midi2_ep *ep, unsigned int blk)
+{
+	reply_ump_stream_string(ep, ump_fb_name(&ep->blks[blk].info),
+				UMP_STREAM_MSG_STATUS_FB_NAME, blk << 8,
+				UMP_STREAM_FB_STR_OFF);
+}
+
+/* Process a UMP Stream message */
+static void process_ump_stream_msg(struct f_midi2_ep *ep, const u32 *data)
+{
+	struct f_midi2 *midi2 = ep->card;
+	unsigned int format, status, blk;
+
+	format = ump_stream_message_format(*data);
+	status = ump_stream_message_status(*data);
+	switch (status) {
+	case UMP_STREAM_MSG_STATUS_EP_DISCOVERY:
+		if (format)
+			return; // invalid
+		if (data[1] & UMP_STREAM_MSG_REQUEST_EP_INFO)
+			reply_ump_stream_ep_info(ep);
+		if (data[1] & UMP_STREAM_MSG_REQUEST_DEVICE_INFO)
+			reply_ump_stream_ep_device(ep);
+		if (data[1] & UMP_STREAM_MSG_REQUEST_EP_NAME)
+			reply_ump_stream_ep_name(ep);
+		if (data[1] & UMP_STREAM_MSG_REQUEST_PRODUCT_ID)
+			reply_ump_stream_ep_pid(ep);
+		if (data[1] & UMP_STREAM_MSG_REQUEST_STREAM_CFG)
+			reply_ump_stream_ep_config(ep);
+		return;
+	case UMP_STREAM_MSG_STATUS_STREAM_CFG_REQUEST:
+		if (*data & UMP_STREAM_MSG_EP_INFO_CAP_MIDI2) {
+			ep->info.protocol = SNDRV_UMP_EP_INFO_PROTO_MIDI2;
+			DBG(midi2, "Switching Protocol to MIDI2\n");
+		} else {
+			ep->info.protocol = SNDRV_UMP_EP_INFO_PROTO_MIDI1;
+			DBG(midi2, "Switching Protocol to MIDI1\n");
+		}
+		snd_ump_switch_protocol(ep->ump, ep->info.protocol);
+		reply_ump_stream_ep_config(ep);
+		return;
+	case UMP_STREAM_MSG_STATUS_FB_DISCOVERY:
+		if (format)
+			return; // invalid
+		blk = (*data >> 8) & 0xff;
+		if (blk >= ep->num_blks)
+			return;
+		if (*data & UMP_STREAM_MSG_REQUEST_FB_INFO)
+			reply_ump_stream_fb_info(ep, blk);
+		if (*data & UMP_STREAM_MSG_REQUEST_FB_NAME)
+			reply_ump_stream_fb_name(ep, blk);
+		return;
+	}
+}
+
+/* Process UMP messages included in a USB request */
+static void process_ump(struct f_midi2_ep *ep, const struct usb_request *req)
+{
+	const u32 *data = (u32 *)req->buf;
+	int len = req->actual >> 2;
+	const u32 *in_buf = ep->ump->input_buf;
+
+	for (; len > 0; len--, data++) {
+		if (snd_ump_receive_ump_val(ep->ump, *data) <= 0)
+			continue;
+		if (ump_message_type(*in_buf) == UMP_MSG_TYPE_STREAM)
+			process_ump_stream_msg(ep, in_buf);
+	}
+}
+
+/*
+ * MIDI 2.0 UMP USB request handling
+ */
+
+/* complete handler for UMP EP-out requests */
+static void f_midi2_ep_out_complete(struct usb_ep *usb_ep,
+				    struct usb_request *req)
+{
+	struct f_midi2_req_ctx *ctx = req->context;
+	struct f_midi2_ep *ep = ctx->usb_ep->ep;
+	struct f_midi2 *midi2 = ep->card;
+	int status = req->status;
+
+	if (status) {
+		DBG(midi2, "%s complete error %d: %d/%d\n",
+		    usb_ep->name, status, req->actual, req->length);
+		goto error;
+	}
+
+	/* convert to UMP packet in native endianness */
+	le32_to_cpu_array((u32 *)req->buf, req->actual >> 2);
+
+	if (midi2->info.process_ump)
+		process_ump(ep, req);
+
+	snd_ump_receive(ep->ump, req->buf, req->actual & ~3);
+
+	if (midi2->operation_mode != MIDI_OP_MODE_MIDI2)
+		goto error;
+
+	if (queue_request_ep_raw(req))
+		goto error;
+	return;
+
+ error:
+	put_empty_request(req);
+}
+
+/* Transmit UMP packets received from user-space to the gadget */
+static void process_ump_transmit(struct f_midi2_ep *ep)
+{
+	struct f_midi2_usb_ep *usb_ep = &ep->ep_in;
+	struct f_midi2 *midi2 = ep->card;
+	struct usb_request *req;
+	int len;
+
+	if (!usb_ep->usb_ep->enabled)
+		return;
+
+	for (;;) {
+		req = get_empty_request(usb_ep);
+		if (!req)
+			break;
+		len = snd_ump_transmit(ep->ump, (u32 *)req->buf,
+				       midi2->info.req_buf_size);
+		if (len <= 0) {
+			put_empty_request(req);
+			break;
+		}
+
+		req->length = len;
+		if (queue_request_ep_in(req) < 0)
+			break;
+	}
+}
+
+/* Complete handler for UMP EP-in requests */
+static void f_midi2_ep_in_complete(struct usb_ep *usb_ep,
+				   struct usb_request *req)
+{
+	struct f_midi2_req_ctx *ctx = req->context;
+	struct f_midi2_ep *ep = ctx->usb_ep->ep;
+	struct f_midi2 *midi2 = ep->card;
+	int status = req->status;
+
+	put_empty_request(req);
+
+	if (status) {
+		DBG(midi2, "%s complete error %d: %d/%d\n",
+		    usb_ep->name, status, req->actual, req->length);
+		return;
+	}
+
+	process_ump_transmit(ep);
+}
+
+/*
+ * MIDI1 (altset 0) USB request handling
+ */
+
+/* process one MIDI byte -- copied from f_midi.c
+ *
+ * fill the packet or request if needed
+ * returns true if the request became empty (queued)
+ */
+static bool process_midi1_byte(struct f_midi2 *midi2, u8 cable, u8 b,
+			       struct usb_request **req_p)
+{
+	struct f_midi2_midi1_port *port = &midi2->midi1_port[cable];
+	u8 p[4] = { cable << 4, 0, 0, 0 };
+	int next_state = STATE_INITIAL;
+	struct usb_request *req = *req_p;
+
+	switch (b) {
+	case 0xf8 ... 0xff:
+		/* System Real-Time Messages */
+		p[0] |= 0x0f;
+		p[1] = b;
+		next_state = port->state;
+		port->state = STATE_REAL_TIME;
+		break;
+
+	case 0xf7:
+		/* End of SysEx */
+		switch (port->state) {
+		case STATE_SYSEX_0:
+			p[0] |= 0x05;
+			p[1] = 0xf7;
+			next_state = STATE_FINISHED;
+			break;
+		case STATE_SYSEX_1:
+			p[0] |= 0x06;
+			p[1] = port->data[0];
+			p[2] = 0xf7;
+			next_state = STATE_FINISHED;
+			break;
+		case STATE_SYSEX_2:
+			p[0] |= 0x07;
+			p[1] = port->data[0];
+			p[2] = port->data[1];
+			p[3] = 0xf7;
+			next_state = STATE_FINISHED;
+			break;
+		default:
+			/* Ignore byte */
+			next_state = port->state;
+			port->state = STATE_INITIAL;
+		}
+		break;
+
+	case 0xf0 ... 0xf6:
+		/* System Common Messages */
+		port->data[0] = port->data[1] = 0;
+		port->state = STATE_INITIAL;
+		switch (b) {
+		case 0xf0:
+			port->data[0] = b;
+			port->data[1] = 0;
+			next_state = STATE_SYSEX_1;
+			break;
+		case 0xf1:
+		case 0xf3:
+			port->data[0] = b;
+			next_state = STATE_1PARAM;
+			break;
+		case 0xf2:
+			port->data[0] = b;
+			next_state = STATE_2PARAM_1;
+			break;
+		case 0xf4:
+		case 0xf5:
+			next_state = STATE_INITIAL;
+			break;
+		case 0xf6:
+			p[0] |= 0x05;
+			p[1] = 0xf6;
+			next_state = STATE_FINISHED;
+			break;
+		}
+		break;
+
+	case 0x80 ... 0xef:
+		/*
+		 * Channel Voice Messages, Channel Mode Messages
+		 * and Control Change Messages.
+		 */
+		port->data[0] = b;
+		port->data[1] = 0;
+		port->state = STATE_INITIAL;
+		if (b >= 0xc0 && b <= 0xdf)
+			next_state = STATE_1PARAM;
+		else
+			next_state = STATE_2PARAM_1;
+		break;
+
+	case 0x00 ... 0x7f:
+		/* Message parameters */
+		switch (port->state) {
+		case STATE_1PARAM:
+			if (port->data[0] < 0xf0)
+				p[0] |= port->data[0] >> 4;
+			else
+				p[0] |= 0x02;
+
+			p[1] = port->data[0];
+			p[2] = b;
+			/* This is to allow Running State Messages */
+			next_state = STATE_1PARAM;
+			break;
+		case STATE_2PARAM_1:
+			port->data[1] = b;
+			next_state = STATE_2PARAM_2;
+			break;
+		case STATE_2PARAM_2:
+			if (port->data[0] < 0xf0)
+				p[0] |= port->data[0] >> 4;
+			else
+				p[0] |= 0x03;
+
+			p[1] = port->data[0];
+			p[2] = port->data[1];
+			p[3] = b;
+			/* This is to allow Running State Messages */
+			next_state = STATE_2PARAM_1;
+			break;
+		case STATE_SYSEX_0:
+			port->data[0] = b;
+			next_state = STATE_SYSEX_1;
+			break;
+		case STATE_SYSEX_1:
+			port->data[1] = b;
+			next_state = STATE_SYSEX_2;
+			break;
+		case STATE_SYSEX_2:
+			p[0] |= 0x04;
+			p[1] = port->data[0];
+			p[2] = port->data[1];
+			p[3] = b;
+			next_state = STATE_SYSEX_0;
+			break;
+		}
+		break;
+	}
+
+	/* States where we have to write into the USB request */
+	if (next_state == STATE_FINISHED ||
+	    port->state == STATE_SYSEX_2 ||
+	    port->state == STATE_1PARAM ||
+	    port->state == STATE_2PARAM_2 ||
+	    port->state == STATE_REAL_TIME) {
+		memcpy(req->buf + req->length, p, sizeof(p));
+		req->length += sizeof(p);
+
+		if (next_state == STATE_FINISHED) {
+			next_state = STATE_INITIAL;
+			port->data[0] = port->data[1] = 0;
+		}
+
+		if (midi2->info.req_buf_size - req->length <= 4) {
+			queue_request_ep_raw(req);
+			*req_p = NULL;
+			return true;
+		}
+	}
+
+	port->state = next_state;
+	return false;
+}
+
+/* process all pending MIDI bytes in the internal buffer;
+ * returns true if the request gets empty
+ * returns false if all have been processed
+ */
+static bool process_midi1_pending_buf(struct f_midi2 *midi2,
+				      struct usb_request **req_p)
+{
+	unsigned int cable, c;
+
+	for (cable = 0; cable < midi2->num_midi1_in; cable++) {
+		struct f_midi2_midi1_port *port = &midi2->midi1_port[cable];
+
+		if (!port->pending)
+			continue;
+		for (c = 0; c < port->pending; c++) {
+			if (process_midi1_byte(midi2, cable, port->buf[c],
+					       req_p)) {
+				port->pending -= c;
+				if (port->pending)
+					memmove(port->buf, port->buf + c,
+						port->pending);
+				return true;
+			}
+		}
+		port->pending = 0;
+	}
+
+	return false;
+}
+
+/* fill the MIDI bytes onto the temporary buffer
+ */
+static void fill_midi1_pending_buf(struct f_midi2 *midi2, u8 cable, u8 *buf,
+				   unsigned int size)
+{
+	struct f_midi2_midi1_port *port = &midi2->midi1_port[cable];
+
+	if (port->pending + size > sizeof(port->buf))
+		return;
+	memcpy(port->buf + port->pending, buf, size);
+	port->pending += size;
+}
+
+/* try to process data given from the associated UMP stream */
+static void process_midi1_transmit(struct f_midi2 *midi2)
+{
+	struct f_midi2_usb_ep *usb_ep = &midi2->midi1_ep_in;
+	struct f_midi2_ep *ep = &midi2->midi2_eps[0];
+	struct usb_request *req = NULL;
+	/* 12 is the largest outcome (4 MIDI1 cmds) for a single UMP packet */
+	unsigned char outbuf[12];
+	unsigned char group, cable;
+	int len, size;
+	u32 ump;
+
+	if (!usb_ep->usb_ep || !usb_ep->usb_ep->enabled)
+		return;
+
+	for (;;) {
+		if (!req) {
+			req = get_empty_request(usb_ep);
+			if (!req)
+				break;
+		}
+
+		if (process_midi1_pending_buf(midi2, &req))
+			continue;
+
+		len = snd_ump_transmit(ep->ump, &ump, 4);
+		if (len <= 0)
+			break;
+		if (snd_ump_receive_ump_val(ep->ump, ump) <= 0)
+			continue;
+		size = snd_ump_convert_from_ump(ep->ump->input_buf, outbuf,
+						&group);
+		if (size <= 0)
+			continue;
+		cable = ep->in_group_to_cable[group];
+		if (!cable)
+			continue;
+		cable--; /* to 0-base */
+		fill_midi1_pending_buf(midi2, cable, outbuf, size);
+	}
+
+	if (req) {
+		if (req->length)
+			queue_request_ep_raw(req);
+		else
+			put_empty_request(req);
+	}
+}
+
+/* complete handler for MIDI1 EP-in requests */
+static void f_midi2_midi1_ep_in_complete(struct usb_ep *usb_ep,
+					 struct usb_request *req)
+{
+	struct f_midi2_req_ctx *ctx = req->context;
+	struct f_midi2 *midi2 = ctx->usb_ep->card;
+	int status = req->status;
+
+	put_empty_request(req);
+
+	if (status) {
+		DBG(midi2, "%s complete error %d: %d/%d\n",
+		    usb_ep->name, status, req->actual, req->length);
+		return;
+	}
+
+	process_midi1_transmit(midi2);
+}
+
+/* complete handler for MIDI1 EP-out requests */
+static void f_midi2_midi1_ep_out_complete(struct usb_ep *usb_ep,
+					  struct usb_request *req)
+{
+	struct f_midi2_req_ctx *ctx = req->context;
+	struct f_midi2 *midi2 = ctx->usb_ep->card;
+	struct f_midi2_ep *ep;
+	struct ump_cvt_to_ump *cvt = &midi2->midi1_ump_cvt;
+	static const u8 midi1_packet_bytes[16] = {
+		0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1
+	};
+	unsigned int group, cable, bytes, c, len;
+	int status = req->status;
+	const u8 *buf = req->buf;
+
+	if (status) {
+		DBG(midi2, "%s complete error %d: %d/%d\n",
+		    usb_ep->name, status, req->actual, req->length);
+		goto error;
+	}
+
+	len = req->actual >> 2;
+	for (; len; len--, buf += 4) {
+		cable = *buf >> 4;
+		ep = midi2->out_cable_mapping[cable].ep;
+		if (!ep)
+			continue;
+		group = midi2->out_cable_mapping[cable].group;
+		bytes = midi1_packet_bytes[*buf & 0x0f];
+		for (c = 0; c < bytes; c++) {
+			snd_ump_convert_to_ump(cvt, group, ep->info.protocol,
+					       buf[c + 1]);
+			if (cvt->ump_bytes) {
+				snd_ump_receive(ep->ump, cvt->ump,
+						cvt->ump_bytes);
+				cvt->ump_bytes = 0;
+			}
+		}
+	}
+
+	if (midi2->operation_mode != MIDI_OP_MODE_MIDI1)
+		goto error;
+
+	if (queue_request_ep_raw(req))
+		goto error;
+	return;
+
+ error:
+	put_empty_request(req);
+}
+
+/*
+ * Common EP handling helpers
+ */
+
+/* Start MIDI EP */
+static int f_midi2_start_ep(struct f_midi2_usb_ep *usb_ep,
+			    struct usb_function *fn)
+{
+	int err;
+
+	if (!usb_ep->usb_ep)
+		return 0;
+
+	usb_ep_disable(usb_ep->usb_ep);
+	err = config_ep_by_speed(usb_ep->card->gadget, fn, usb_ep->usb_ep);
+	if (err)
+		return err;
+	return usb_ep_enable(usb_ep->usb_ep);
+}
+
+/* Drop pending requests */
+static void f_midi2_drop_reqs(struct f_midi2_usb_ep *usb_ep)
+{
+	int i;
+
+	if (!usb_ep->usb_ep || !usb_ep->num_reqs)
+		return;
+
+	for (i = 0; i < usb_ep->num_reqs; i++) {
+		if (!test_bit(i, &usb_ep->free_reqs) && usb_ep->reqs[i].req) {
+			usb_ep_dequeue(usb_ep->usb_ep, usb_ep->reqs[i].req);
+			set_bit(i, &usb_ep->free_reqs);
+		}
+	}
+}
+
+/* Allocate requests for the given EP */
+static int f_midi2_alloc_ep_reqs(struct f_midi2_usb_ep *usb_ep)
+{
+	struct f_midi2 *midi2 = usb_ep->card;
+	int i;
+
+	if (!usb_ep->usb_ep)
+		return 0;
+	if (!usb_ep->reqs)
+		return -EINVAL;
+
+	for (i = 0; i < midi2->info.num_reqs; i++) {
+		if (usb_ep->reqs[i].req)
+			continue;
+		usb_ep->reqs[i].req = alloc_ep_req(usb_ep->usb_ep,
+						   midi2->info.req_buf_size);
+		if (!usb_ep->reqs[i].req)
+			return -ENOMEM;
+		usb_ep->reqs[i].req->context = &usb_ep->reqs[i];
+	}
+	return 0;
+}
+
+/* Free allocated requests */
+static void f_midi2_free_ep_reqs(struct f_midi2_usb_ep *usb_ep)
+{
+	struct f_midi2 *midi2 = usb_ep->card;
+	int i;
+
+	for (i = 0; i < midi2->info.num_reqs; i++) {
+		if (!usb_ep->reqs[i].req)
+			continue;
+		free_ep_req(usb_ep->usb_ep, usb_ep->reqs[i].req);
+		usb_ep->reqs[i].req = NULL;
+	}
+}
+
+/* Initialize EP */
+static int f_midi2_init_ep(struct f_midi2 *midi2, struct f_midi2_ep *ep,
+			   struct f_midi2_usb_ep *usb_ep,
+			   void *desc,
+			   void (*complete)(struct usb_ep *usb_ep,
+					    struct usb_request *req))
+{
+	int i;
+
+	usb_ep->card = midi2;
+	usb_ep->ep = ep;
+	usb_ep->usb_ep = usb_ep_autoconfig(midi2->gadget, desc);
+	if (!usb_ep->usb_ep)
+		return -ENODEV;
+	usb_ep->complete = complete;
+
+	usb_ep->reqs = kcalloc(midi2->info.num_reqs, sizeof(*usb_ep->reqs),
+			       GFP_KERNEL);
+	if (!usb_ep->reqs)
+		return -ENOMEM;
+	for (i = 0; i < midi2->info.num_reqs; i++) {
+		usb_ep->reqs[i].index = i;
+		usb_ep->reqs[i].usb_ep = usb_ep;
+		set_bit(i, &usb_ep->free_reqs);
+		usb_ep->num_reqs++;
+	}
+
+	return 0;
+}
+
+/* Free EP */
+static void f_midi2_free_ep(struct f_midi2_usb_ep *usb_ep)
+{
+	f_midi2_drop_reqs(usb_ep);
+
+	f_midi2_free_ep_reqs(usb_ep);
+
+	kfree(usb_ep->reqs);
+	usb_ep->num_reqs = 0;
+	usb_ep->free_reqs = 0;
+	usb_ep->reqs = NULL;
+}
+
+/* Queue requests for EP-out at start */
+static void f_midi2_queue_out_reqs(struct f_midi2_usb_ep *usb_ep)
+{
+	int i, err;
+
+	if (!usb_ep->usb_ep)
+		return;
+
+	for (i = 0; i < usb_ep->num_reqs; i++) {
+		if (!test_bit(i, &usb_ep->free_reqs) || !usb_ep->reqs[i].req)
+			continue;
+		usb_ep->reqs[i].req->complete = usb_ep->complete;
+		err = usb_ep_queue(usb_ep->usb_ep, usb_ep->reqs[i].req,
+				   GFP_ATOMIC);
+		if (!err)
+			clear_bit(i, &usb_ep->free_reqs);
+	}
+}
+
+/*
+ * Gadget Function callbacks
+ */
+
+/* stop both IN and OUT EPs */
+static void f_midi2_stop_eps(struct f_midi2_usb_ep *ep_in,
+			     struct f_midi2_usb_ep *ep_out)
+{
+	f_midi2_drop_reqs(ep_in);
+	f_midi2_drop_reqs(ep_out);
+	f_midi2_free_ep_reqs(ep_in);
+	f_midi2_free_ep_reqs(ep_out);
+}
+
+/* start/queue both IN and OUT EPs */
+static int f_midi2_start_eps(struct f_midi2_usb_ep *ep_in,
+			     struct f_midi2_usb_ep *ep_out,
+			     struct usb_function *fn)
+{
+	int err;
+
+	err = f_midi2_start_ep(ep_in, fn);
+	if (err)
+		return err;
+	err = f_midi2_start_ep(ep_out, fn);
+	if (err)
+		return err;
+
+	err = f_midi2_alloc_ep_reqs(ep_in);
+	if (err)
+		return err;
+	err = f_midi2_alloc_ep_reqs(ep_out);
+	if (err)
+		return err;
+
+	f_midi2_queue_out_reqs(ep_out);
+	return 0;
+}
+
+/* gadget function set_alt callback */
+static int f_midi2_set_alt(struct usb_function *fn, unsigned int intf,
+			   unsigned int alt)
+{
+	struct f_midi2 *midi2 = func_to_midi2(fn);
+	struct f_midi2_ep *ep;
+	int i, op_mode, err;
+
+	if (intf != midi2->midi_if || alt > 1)
+		return 0;
+
+	if (alt == 0)
+		op_mode = MIDI_OP_MODE_MIDI1;
+	else if (alt == 1)
+		op_mode = MIDI_OP_MODE_MIDI2;
+	else
+		op_mode = MIDI_OP_MODE_UNSET;
+
+	if (midi2->operation_mode == op_mode)
+		return 0;
+
+	midi2->operation_mode = op_mode;
+
+	if (op_mode != MIDI_OP_MODE_MIDI1)
+		f_midi2_stop_eps(&midi2->midi1_ep_in, &midi2->midi1_ep_out);
+
+	if (op_mode != MIDI_OP_MODE_MIDI2) {
+		for (i = 0; i < midi2->num_eps; i++) {
+			ep = &midi2->midi2_eps[i];
+			f_midi2_stop_eps(&ep->ep_in, &ep->ep_out);
+		}
+	}
+
+	if (op_mode == MIDI_OP_MODE_MIDI1)
+		return f_midi2_start_eps(&midi2->midi1_ep_in,
+					 &midi2->midi1_ep_out, fn);
+
+	if (op_mode == MIDI_OP_MODE_MIDI2) {
+		for (i = 0; i < midi2->num_eps; i++) {
+			ep = &midi2->midi2_eps[i];
+
+			err = f_midi2_start_eps(&ep->ep_in, &ep->ep_out, fn);
+			if (err)
+				return err;
+		}
+	}
+
+	return 0;
+}
+
+/* gadget function get_alt callback */
+static int f_midi2_get_alt(struct usb_function *fn, unsigned int intf)
+{
+	struct f_midi2 *midi2 = func_to_midi2(fn);
+
+	if (intf == midi2->midi_if &&
+	    midi2->operation_mode == MIDI_OP_MODE_MIDI2)
+		return 1;
+	return 0;
+}
+
+/* convert UMP direction to USB MIDI 2.0 direction */
+static unsigned int ump_to_usb_dir(unsigned int ump_dir)
+{
+	switch (ump_dir) {
+	case SNDRV_UMP_DIR_INPUT:
+		return USB_MS_GR_TRM_BLOCK_TYPE_INPUT_ONLY;
+	case SNDRV_UMP_DIR_OUTPUT:
+		return USB_MS_GR_TRM_BLOCK_TYPE_OUTPUT_ONLY;
+	default:
+		return USB_MS_GR_TRM_BLOCK_TYPE_BIDIRECTIONAL;
+	}
+}
+
+/* assign GTB descriptors (for the given request) */
+static void assign_block_descriptors(struct f_midi2 *midi2,
+				     struct usb_request *req,
+				     int max_len)
+{
+	struct usb_ms20_gr_trm_block_header_descriptor header;
+	struct usb_ms20_gr_trm_block_descriptor *desc;
+	struct f_midi2_block_info *b;
+	struct f_midi2_ep *ep;
+	int i, blk, len;
+	char *data;
+
+	len = sizeof(gtb_header_desc) + sizeof(gtb_desc) * midi2->total_blocks;
+	if (WARN_ON(len > midi2->info.req_buf_size))
+		return;
+
+	header = gtb_header_desc;
+	header.wTotalLength = cpu_to_le16(len);
+	if (max_len < len) {
+		len = min_t(int, len, sizeof(header));
+		memcpy(req->buf, &header, len);
+		req->length = len;
+		req->zero = len < max_len;
+		return;
+	}
+
+	memcpy(req->buf, &header, sizeof(header));
+	data = req->buf + sizeof(header);
+	for (i = 0; i < midi2->num_eps; i++) {
+		ep = &midi2->midi2_eps[i];
+		for (blk = 0; blk < ep->num_blks; blk++) {
+			b = &ep->blks[blk].info;
+			desc = (struct usb_ms20_gr_trm_block_descriptor *)data;
+
+			*desc = gtb_desc;
+			desc->bGrpTrmBlkID = ep->blks[blk].gtb_id;
+			desc->bGrpTrmBlkType = ump_to_usb_dir(b->direction);
+			desc->nGroupTrm = b->first_group;
+			desc->nNumGroupTrm = b->num_groups;
+			desc->iBlockItem = ep->blks[blk].string_id;
+
+			if (ep->info.protocol & SNDRV_UMP_EP_INFO_PROTO_MIDI2)
+				desc->bMIDIProtocol = USB_MS_MIDI_PROTO_2_0;
+			else
+				desc->bMIDIProtocol = USB_MS_MIDI_PROTO_1_0_128;
+
+			if (b->is_midi1 == 2) {
+				desc->wMaxInputBandwidth = cpu_to_le16(1);
+				desc->wMaxOutputBandwidth = cpu_to_le16(1);
+			}
+
+			data += sizeof(*desc);
+		}
+	}
+
+	req->length = len;
+	req->zero = len < max_len;
+}
+
+/* gadget function setup callback: handle GTB requests */
+static int f_midi2_setup(struct usb_function *fn,
+			 const struct usb_ctrlrequest *ctrl)
+{
+	struct f_midi2 *midi2 = func_to_midi2(fn);
+	struct usb_composite_dev *cdev = fn->config->cdev;
+	struct usb_request *req = cdev->req;
+	u16 value, length;
+
+	if ((ctrl->bRequestType & USB_TYPE_MASK) != USB_TYPE_STANDARD ||
+	    ctrl->bRequest != USB_REQ_GET_DESCRIPTOR)
+		return -EOPNOTSUPP;
+
+	value = le16_to_cpu(ctrl->wValue);
+	length = le16_to_cpu(ctrl->wLength);
+
+	if ((value >> 8) != USB_DT_CS_GR_TRM_BLOCK)
+		return -EOPNOTSUPP;
+
+	/* handle only altset 1 */
+	if ((value & 0xff) != 1)
+		return -EOPNOTSUPP;
+
+	assign_block_descriptors(midi2, req, length);
+	return usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC);
+}
+
+/* gadget function disable callback */
+static void f_midi2_disable(struct usb_function *fn)
+{
+	struct f_midi2 *midi2 = func_to_midi2(fn);
+
+	midi2->operation_mode = MIDI_OP_MODE_UNSET;
+}
+
+/*
+ * ALSA UMP ops: most of them are NOPs, only trigger for write is needed
+ */
+static int f_midi2_ump_open(struct snd_ump_endpoint *ump, int dir)
+{
+	return 0;
+}
+
+static void f_midi2_ump_close(struct snd_ump_endpoint *ump, int dir)
+{
+}
+
+static void f_midi2_ump_trigger(struct snd_ump_endpoint *ump, int dir, int up)
+{
+	struct f_midi2_ep *ep = ump->private_data;
+	struct f_midi2 *midi2 = ep->card;
+
+	if (up && dir == SNDRV_RAWMIDI_STREAM_OUTPUT) {
+		switch (midi2->operation_mode) {
+		case MIDI_OP_MODE_MIDI1:
+			process_midi1_transmit(midi2);
+			break;
+		case MIDI_OP_MODE_MIDI2:
+			process_ump_transmit(ep);
+			break;
+		}
+	}
+}
+
+static void f_midi2_ump_drain(struct snd_ump_endpoint *ump, int dir)
+{
+}
+
+static const struct snd_ump_ops f_midi2_ump_ops = {
+	.open = f_midi2_ump_open,
+	.close = f_midi2_ump_close,
+	.trigger = f_midi2_ump_trigger,
+	.drain = f_midi2_ump_drain,
+};
+
+/*
+ * "Operation Mode" control element
+ */
+static int f_midi2_operation_mode_info(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = MIDI_OP_MODE_UNSET;
+	uinfo->value.integer.max = MIDI_OP_MODE_MIDI2;
+	return 0;
+}
+
+static int f_midi2_operation_mode_get(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	struct f_midi2 *midi2 = snd_kcontrol_chip(kcontrol);
+
+	ucontrol->value.integer.value[0] = midi2->operation_mode;
+	return 0;
+}
+
+static const struct snd_kcontrol_new operation_mode_ctl = {
+	.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
+	.name = "Operation Mode",
+	.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info = f_midi2_operation_mode_info,
+	.get = f_midi2_operation_mode_get,
+};
+
+/*
+ * ALSA UMP instance creation / deletion
+ */
+static void f_midi2_free_card(struct f_midi2 *midi2)
+{
+	if (midi2->card) {
+		snd_card_free_when_closed(midi2->card);
+		midi2->card = NULL;
+	}
+}
+
+/* use a reverse direction for the gadget host */
+static int reverse_dir(int dir)
+{
+	if (!dir || dir == SNDRV_UMP_DIR_BIDIRECTION)
+		return dir;
+	return (dir == SNDRV_UMP_DIR_OUTPUT) ?
+		SNDRV_UMP_DIR_INPUT : SNDRV_UMP_DIR_OUTPUT;
+}
+
+static int f_midi2_create_card(struct f_midi2 *midi2)
+{
+	struct snd_card *card;
+	struct snd_ump_endpoint *ump;
+	struct f_midi2_ep *ep;
+	int i, id, blk, err;
+	__be32 sw;
+
+	err = snd_card_new(&midi2->gadget->dev, -1, NULL, THIS_MODULE, 0,
+			   &card);
+	if (err < 0)
+		return err;
+	midi2->card = card;
+
+	strcpy(card->driver, "f_midi2");
+	strcpy(card->shortname, "MIDI 2.0 Gadget");
+	strcpy(card->longname, "MIDI 2.0 Gadget");
+
+	id = 0;
+	for (i = 0; i < midi2->num_eps; i++) {
+		ep = &midi2->midi2_eps[i];
+		err = snd_ump_endpoint_new(card, "MIDI 2.0 Gadget", id,
+					   1, 1, &ump);
+		if (err < 0)
+			goto error;
+		id++;
+
+		ep->ump = ump;
+		ump->no_process_stream = true;
+		ump->private_data = ep;
+		ump->ops = &f_midi2_ump_ops;
+		if (midi2->info.static_block)
+			ump->info.flags |= SNDRV_UMP_EP_INFO_STATIC_BLOCKS;
+		ump->info.protocol_caps = (ep->info.protocol_caps & 3) << 8;
+		ump->info.protocol = (ep->info.protocol & 3) << 8;
+		ump->info.version = 0x0101;
+		ump->info.family_id = ep->info.family;
+		ump->info.model_id = ep->info.model;
+		ump->info.manufacturer_id = ep->info.manufacturer & 0xffffff;
+		sw = cpu_to_be32(ep->info.sw_revision);
+		memcpy(ump->info.sw_revision, &sw, 4);
+
+		strscpy(ump->info.name, ump_ep_name(ep),
+			sizeof(ump->info.name));
+		strscpy(ump->info.product_id, ump_product_id(ep),
+			sizeof(ump->info.product_id));
+		strscpy(ump->core.name, ump->info.name, sizeof(ump->core.name));
+
+		for (blk = 0; blk < ep->num_blks; blk++) {
+			const struct f_midi2_block_info *b = &ep->blks[blk].info;
+			struct snd_ump_block *fb;
+
+			err = snd_ump_block_new(ump, blk,
+						reverse_dir(b->direction),
+						b->first_group, b->num_groups,
+						&ep->blks[blk].fb);
+			if (err < 0)
+				goto error;
+			fb = ep->blks[blk].fb;
+			fb->info.active = !!b->active;
+			fb->info.midi_ci_version = b->midi_ci_version;
+			fb->info.ui_hint = reverse_dir(b->ui_hint);
+			fb->info.sysex8_streams = b->sysex8_streams;
+			fb->info.flags |= b->is_midi1;
+			strscpy(fb->info.name, ump_fb_name(b),
+				sizeof(fb->info.name));
+		}
+	}
+
+	for (i = 0; i < midi2->num_eps; i++) {
+		err = snd_ump_attach_legacy_rawmidi(midi2->midi2_eps[i].ump,
+						    "Legacy MIDI", id);
+		if (err < 0)
+			goto error;
+		id++;
+	}
+
+	err = snd_ctl_add(card, snd_ctl_new1(&operation_mode_ctl, midi2));
+	if (err < 0)
+		goto error;
+
+	err = snd_card_register(card);
+	if (err < 0)
+		goto error;
+
+	return 0;
+
+ error:
+	f_midi2_free_card(midi2);
+	return err;
+}
+
+/*
+ * Creation of USB descriptors
+ */
+struct f_midi2_usb_config {
+	struct usb_descriptor_header **list;
+	unsigned int size;
+	unsigned int alloc;
+
+	/* MIDI 1.0 jacks */
+	unsigned char jack_in, jack_out, jack_id;
+	struct usb_midi_in_jack_descriptor jack_ins[MAX_CABLES];
+	struct usb_midi_out_jack_descriptor_1 jack_outs[MAX_CABLES];
+};
+
+static int append_config(struct f_midi2_usb_config *config, void *d)
+{
+	unsigned int size;
+	void *buf;
+
+	if (config->size + 2 >= config->alloc) {
+		size = config->size + 16;
+		buf = krealloc(config->list, size * sizeof(void *), GFP_KERNEL);
+		if (!buf)
+			return -ENOMEM;
+		config->list = buf;
+		config->alloc = size;
+	}
+
+	config->list[config->size] = d;
+	config->size++;
+	config->list[config->size] = NULL;
+	return 0;
+}
+
+static int append_configs(struct f_midi2_usb_config *config, void **d)
+{
+	int err;
+
+	for (; *d; d++) {
+		err = append_config(config, *d);
+		if (err)
+			return err;
+	}
+	return 0;
+}
+
+static int append_midi1_in_jack(struct f_midi2 *midi2,
+				struct f_midi2_usb_config *config,
+				struct midi1_cable_mapping *map,
+				unsigned int type)
+{
+	struct usb_midi_in_jack_descriptor *jack =
+		&config->jack_ins[config->jack_in++];
+	int id = ++config->jack_id;
+	int err;
+
+	jack->bLength = 0x06;
+	jack->bDescriptorType = USB_DT_CS_INTERFACE;
+	jack->bDescriptorSubtype = USB_MS_MIDI_IN_JACK;
+	jack->bJackType = type;
+	jack->bJackID = id;
+	/* use the corresponding block name as jack name */
+	if (map->ep)
+		jack->iJack = map->ep->blks[map->block].string_id;
+
+	err = append_config(config, jack);
+	if (err < 0)
+		return err;
+	return id;
+}
+
+static int append_midi1_out_jack(struct f_midi2 *midi2,
+				 struct f_midi2_usb_config *config,
+				 struct midi1_cable_mapping *map,
+				 unsigned int type, unsigned int source)
+{
+	struct usb_midi_out_jack_descriptor_1 *jack =
+		&config->jack_outs[config->jack_out++];
+	int id = ++config->jack_id;
+	int err;
+
+	jack->bLength = 0x09;
+	jack->bDescriptorType = USB_DT_CS_INTERFACE;
+	jack->bDescriptorSubtype = USB_MS_MIDI_OUT_JACK;
+	jack->bJackType = type;
+	jack->bJackID = id;
+	jack->bNrInputPins = 1;
+	jack->pins[0].baSourceID = source;
+	jack->pins[0].baSourcePin = 0x01;
+	/* use the corresponding block name as jack name */
+	if (map->ep)
+		jack->iJack = map->ep->blks[map->block].string_id;
+
+	err = append_config(config, jack);
+	if (err < 0)
+		return err;
+	return id;
+}
+
+static int f_midi2_create_usb_configs(struct f_midi2 *midi2,
+				      struct f_midi2_usb_config *config,
+				      int speed)
+{
+	void **midi1_in_eps, **midi1_out_eps;
+	int i, jack, total;
+	int err;
+
+	switch (speed) {
+	default:
+	case USB_SPEED_HIGH:
+		midi2_midi1_ep_out_desc.wMaxPacketSize = cpu_to_le16(512);
+		midi2_midi1_ep_in_desc.wMaxPacketSize = cpu_to_le16(512);
+		for (i = 0; i < midi2->num_eps; i++)
+			midi2_midi2_ep_out_desc[i].wMaxPacketSize =
+				cpu_to_le16(512);
+		fallthrough;
+	case USB_SPEED_FULL:
+		midi1_in_eps = midi2_midi1_ep_in_descs;
+		midi1_out_eps = midi2_midi1_ep_out_descs;
+		break;
+	case USB_SPEED_SUPER:
+		midi2_midi1_ep_out_desc.wMaxPacketSize = cpu_to_le16(1024);
+		midi2_midi1_ep_in_desc.wMaxPacketSize = cpu_to_le16(1024);
+		for (i = 0; i < midi2->num_eps; i++)
+			midi2_midi2_ep_out_desc[i].wMaxPacketSize =
+				cpu_to_le16(1024);
+		midi1_in_eps = midi2_midi1_ep_in_ss_descs;
+		midi1_out_eps = midi2_midi1_ep_out_ss_descs;
+		break;
+	}
+
+	err = append_configs(config, midi2_audio_descs);
+	if (err < 0)
+		return err;
+
+	if (midi2->num_midi1_in && midi2->num_midi1_out)
+		midi2_midi1_if_desc.bNumEndpoints = 2;
+	else
+		midi2_midi1_if_desc.bNumEndpoints = 1;
+
+	err = append_configs(config, midi2_midi1_descs);
+	if (err < 0)
+		return err;
+
+	total = USB_DT_MS_HEADER_SIZE;
+	if (midi2->num_midi1_out) {
+		midi2_midi1_ep_out_class_desc.bLength =
+			USB_DT_MS_ENDPOINT_SIZE(midi2->num_midi1_out);
+		total += midi2_midi1_ep_out_class_desc.bLength;
+		midi2_midi1_ep_out_class_desc.bNumEmbMIDIJack =
+			midi2->num_midi1_out;
+		total += midi2->num_midi1_out *
+			(USB_DT_MIDI_IN_SIZE + USB_DT_MIDI_OUT_SIZE(1));
+		for (i = 0; i < midi2->num_midi1_out; i++) {
+			jack = append_midi1_in_jack(midi2, config,
+						    &midi2->in_cable_mapping[i],
+						    USB_MS_EMBEDDED);
+			if (jack < 0)
+				return jack;
+			midi2_midi1_ep_out_class_desc.baAssocJackID[i] = jack;
+			jack = append_midi1_out_jack(midi2, config,
+						     &midi2->in_cable_mapping[i],
+						     USB_MS_EXTERNAL, jack);
+			if (jack < 0)
+				return jack;
+		}
+	}
+
+	if (midi2->num_midi1_in) {
+		midi2_midi1_ep_in_class_desc.bLength =
+			USB_DT_MS_ENDPOINT_SIZE(midi2->num_midi1_in);
+		total += midi2_midi1_ep_in_class_desc.bLength;
+		midi2_midi1_ep_in_class_desc.bNumEmbMIDIJack =
+			midi2->num_midi1_in;
+		total += midi2->num_midi1_in *
+			(USB_DT_MIDI_IN_SIZE + USB_DT_MIDI_OUT_SIZE(1));
+		for (i = 0; i < midi2->num_midi1_in; i++) {
+			jack = append_midi1_in_jack(midi2, config,
+						    &midi2->out_cable_mapping[i],
+						    USB_MS_EXTERNAL);
+			if (jack < 0)
+				return jack;
+			jack = append_midi1_out_jack(midi2, config,
+						     &midi2->out_cable_mapping[i],
+						     USB_MS_EMBEDDED, jack);
+			if (jack < 0)
+				return jack;
+			midi2_midi1_ep_in_class_desc.baAssocJackID[i] = jack;
+		}
+	}
+
+	midi2_midi1_class_desc.wTotalLength = cpu_to_le16(total);
+
+	if (midi2->num_midi1_out) {
+		err = append_configs(config, midi1_out_eps);
+		if (err < 0)
+			return err;
+	}
+	if (midi2->num_midi1_in) {
+		err = append_configs(config, midi1_in_eps);
+		if (err < 0)
+			return err;
+	}
+
+	err = append_configs(config, midi2_midi2_descs);
+	if (err < 0)
+		return err;
+
+	for (i = 0; i < midi2->num_eps; i++) {
+		err = append_config(config, &midi2_midi2_ep_out_desc[i]);
+		if (err < 0)
+			return err;
+		if (speed == USB_SPEED_SUPER || speed == USB_SPEED_SUPER_PLUS) {
+			err = append_config(config, &midi2_midi2_ep_out_ss_comp_desc);
+			if (err < 0)
+				return err;
+		}
+		err = append_config(config, &midi2_midi2_ep_out_class_desc[i]);
+		if (err < 0)
+			return err;
+		err = append_config(config, &midi2_midi2_ep_in_desc[i]);
+		if (err < 0)
+			return err;
+		if (speed == USB_SPEED_SUPER || speed == USB_SPEED_SUPER_PLUS) {
+			err = append_config(config, &midi2_midi2_ep_in_ss_comp_desc);
+			if (err < 0)
+				return err;
+		}
+		err = append_config(config, &midi2_midi2_ep_in_class_desc[i]);
+		if (err < 0)
+			return err;
+	}
+
+	return 0;
+}
+
+static void f_midi2_free_usb_configs(struct f_midi2_usb_config *config)
+{
+	kfree(config->list);
+	memset(config, 0, sizeof(*config));
+}
+
+/* as we use the static descriptors for simplicity, serialize bind call */
+static DEFINE_MUTEX(f_midi2_desc_mutex);
+
+/* fill MIDI2 EP class-specific descriptor */
+static void fill_midi2_class_desc(struct f_midi2_ep *ep,
+				  struct usb_ms20_endpoint_descriptor_32 *cdesc)
+{
+	int blk;
+
+	cdesc->bLength = USB_DT_MS20_ENDPOINT_SIZE(ep->num_blks);
+	cdesc->bDescriptorType = USB_DT_CS_ENDPOINT;
+	cdesc->bDescriptorSubtype = USB_MS_GENERAL_2_0;
+	cdesc->bNumGrpTrmBlock = ep->num_blks;
+	for (blk = 0; blk < ep->num_blks; blk++)
+		cdesc->baAssoGrpTrmBlkID[blk] = ep->blks[blk].gtb_id;
+}
+
+/* initialize MIDI2 EP-in */
+static int f_midi2_init_midi2_ep_in(struct f_midi2 *midi2, int index)
+{
+	struct f_midi2_ep *ep = &midi2->midi2_eps[index];
+	struct usb_endpoint_descriptor *desc = &midi2_midi2_ep_in_desc[index];
+
+	desc->bLength = USB_DT_ENDPOINT_SIZE;
+	desc->bDescriptorType = USB_DT_ENDPOINT;
+	desc->bEndpointAddress = USB_DIR_IN;
+	desc->bmAttributes = USB_ENDPOINT_XFER_INT;
+	desc->wMaxPacketSize = cpu_to_le16(EP_MAX_PACKET_INT);
+	desc->bInterval = 1;
+
+	fill_midi2_class_desc(ep, &midi2_midi2_ep_in_class_desc[index]);
+
+	return f_midi2_init_ep(midi2, ep, &ep->ep_in, desc,
+			       f_midi2_ep_in_complete);
+}
+
+/* initialize MIDI2 EP-out */
+static int f_midi2_init_midi2_ep_out(struct f_midi2 *midi2, int index)
+{
+	struct f_midi2_ep *ep = &midi2->midi2_eps[index];
+	struct usb_endpoint_descriptor *desc = &midi2_midi2_ep_out_desc[index];
+
+	desc->bLength = USB_DT_ENDPOINT_SIZE;
+	desc->bDescriptorType = USB_DT_ENDPOINT;
+	desc->bEndpointAddress = USB_DIR_OUT;
+	desc->bmAttributes = USB_ENDPOINT_XFER_BULK;
+
+	fill_midi2_class_desc(ep, &midi2_midi2_ep_out_class_desc[index]);
+
+	return f_midi2_init_ep(midi2, ep, &ep->ep_out, desc,
+			       f_midi2_ep_out_complete);
+}
+
+/* gadget function bind callback */
+static int f_midi2_bind(struct usb_configuration *c, struct usb_function *f)
+{
+	struct usb_composite_dev *cdev = c->cdev;
+	struct f_midi2 *midi2 = func_to_midi2(f);
+	struct f_midi2_ep *ep;
+	struct f_midi2_usb_config config = {};
+	struct usb_gadget_strings string_fn = {
+		.language = 0x0409,	/* en-us */
+		.strings = midi2->string_defs,
+	};
+	struct usb_gadget_strings *strings[] = {
+		&string_fn,
+		NULL,
+	};
+	int i, blk, status;
+
+	midi2->gadget = cdev->gadget;
+	midi2->operation_mode = MIDI_OP_MODE_UNSET;
+
+	status = f_midi2_create_card(midi2);
+	if (status < 0)
+		goto fail_register;
+
+	/* maybe allocate device-global string ID */
+	midi2->strings = usb_gstrings_attach(c->cdev, strings,
+					     midi2->total_blocks + 1);
+	if (IS_ERR(midi2->strings)) {
+		status = PTR_ERR(midi2->strings);
+		goto fail_string;
+	}
+
+	mutex_lock(&f_midi2_desc_mutex);
+	midi2_midi1_if_desc.iInterface = midi2->strings[STR_IFACE].id;
+	midi2_midi2_if_desc.iInterface = midi2->strings[STR_IFACE].id;
+	for (i = 0; i < midi2->num_eps; i++) {
+		ep = &midi2->midi2_eps[i];
+		for (blk = 0; blk < ep->num_blks; blk++)
+			ep->blks[blk].string_id =
+				midi2->strings[gtb_to_str_id(ep->blks[blk].gtb_id)].id;
+	}
+
+	midi2_midi2_if_desc.bNumEndpoints = midi2->num_eps * 2;
+
+	/* audio interface */
+	status = usb_interface_id(c, f);
+	if (status < 0)
+		goto fail;
+	midi2_audio_if_desc.bInterfaceNumber = status;
+
+	/* MIDI streaming */
+	status = usb_interface_id(c, f);
+	if (status < 0)
+		goto fail;
+	midi2->midi_if = status;
+	midi2_midi1_if_desc.bInterfaceNumber = status;
+	midi2_midi2_if_desc.bInterfaceNumber = status;
+	midi2_audio_class_desc.baInterfaceNr[0] = status;
+
+	/* allocate instance-specific endpoints */
+	if (midi2->midi2_eps[0].blks[0].info.direction != SNDRV_UMP_DIR_OUTPUT) {
+		status = f_midi2_init_ep(midi2, NULL, &midi2->midi1_ep_in,
+					 &midi2_midi1_ep_in_desc,
+					 f_midi2_midi1_ep_in_complete);
+		if (status)
+			goto fail;
+	}
+
+	if (midi2->midi2_eps[0].blks[0].info.direction != SNDRV_UMP_DIR_INPUT) {
+		status = f_midi2_init_ep(midi2, NULL, &midi2->midi1_ep_out,
+					 &midi2_midi1_ep_out_desc,
+					 f_midi2_midi1_ep_out_complete);
+		if (status)
+			goto fail;
+	}
+
+	for (i = 0; i < midi2->num_eps; i++) {
+		status = f_midi2_init_midi2_ep_in(midi2, i);
+		if (status)
+			goto fail;
+		status = f_midi2_init_midi2_ep_out(midi2, i);
+		if (status)
+			goto fail;
+	}
+
+	status = f_midi2_create_usb_configs(midi2, &config, USB_SPEED_FULL);
+	if (status < 0)
+		goto fail;
+	f->fs_descriptors = usb_copy_descriptors(config.list);
+	if (!f->fs_descriptors) {
+		status = -ENOMEM;
+		goto fail;
+	}
+	f_midi2_free_usb_configs(&config);
+
+	status = f_midi2_create_usb_configs(midi2, &config, USB_SPEED_HIGH);
+	if (status < 0)
+		goto fail;
+	f->hs_descriptors = usb_copy_descriptors(config.list);
+	if (!f->hs_descriptors) {
+		status = -ENOMEM;
+		goto fail;
+	}
+	f_midi2_free_usb_configs(&config);
+
+	status = f_midi2_create_usb_configs(midi2, &config, USB_SPEED_SUPER);
+	if (status < 0)
+		goto fail;
+	f->ss_descriptors = usb_copy_descriptors(config.list);
+	if (!f->ss_descriptors) {
+		status = -ENOMEM;
+		goto fail;
+	}
+	f_midi2_free_usb_configs(&config);
+
+	mutex_unlock(&f_midi2_desc_mutex);
+	return 0;
+
+fail:
+	f_midi2_free_usb_configs(&config);
+	mutex_unlock(&f_midi2_desc_mutex);
+	usb_free_all_descriptors(f);
+fail_string:
+	f_midi2_free_card(midi2);
+fail_register:
+	ERROR(midi2, "%s: can't bind, err %d\n", f->name, status);
+	return status;
+}
+
+/* gadget function unbind callback */
+static void f_midi2_unbind(struct usb_configuration *c, struct usb_function *f)
+{
+	struct f_midi2 *midi2 = func_to_midi2(f);
+	int i;
+
+	f_midi2_free_card(midi2);
+
+	f_midi2_free_ep(&midi2->midi1_ep_in);
+	f_midi2_free_ep(&midi2->midi1_ep_out);
+	for (i = 0; i < midi2->num_eps; i++) {
+		f_midi2_free_ep(&midi2->midi2_eps[i].ep_in);
+		f_midi2_free_ep(&midi2->midi2_eps[i].ep_out);
+	}
+
+	usb_free_all_descriptors(f);
+}
+
+/*
+ * ConfigFS interface
+ */
+
+/* type conversion helpers */
+static inline struct f_midi2_opts *to_f_midi2_opts(struct config_item *item)
+{
+	return container_of(to_config_group(item), struct f_midi2_opts,
+			    func_inst.group);
+}
+
+static inline struct f_midi2_ep_opts *
+to_f_midi2_ep_opts(struct config_item *item)
+{
+	return container_of(to_config_group(item), struct f_midi2_ep_opts,
+			    group);
+}
+
+static inline struct f_midi2_block_opts *
+to_f_midi2_block_opts(struct config_item *item)
+{
+	return container_of(to_config_group(item), struct f_midi2_block_opts,
+			    group);
+}
+
+/* trim the string to be usable for EP and FB name strings */
+static void make_name_string(char *s)
+{
+	char *p;
+
+	p = strchr(s, '\n');
+	if (p)
+		*p = 0;
+
+	p = s + strlen(s);
+	for (; p > s && isspace(*p); p--)
+		*p = 0;
+}
+
+/* configfs helpers: generic show/store for unisnged int */
+static ssize_t f_midi2_opts_uint_show(struct f_midi2_opts *opts,
+				      u32 val, const char *format, char *page)
+{
+	int result;
+
+	mutex_lock(&opts->lock);
+	result = sprintf(page, format, val);
+	mutex_unlock(&opts->lock);
+	return result;
+}
+
+static ssize_t f_midi2_opts_uint_store(struct f_midi2_opts *opts,
+				       u32 *valp, u32 minval, u32 maxval,
+				       const char *page, size_t len)
+{
+	int ret;
+	u32 val;
+
+	mutex_lock(&opts->lock);
+	if (opts->refcnt) {
+		ret = -EBUSY;
+		goto end;
+	}
+
+	ret = kstrtou32(page, 0, &val);
+	if (ret)
+		goto end;
+	if (val < minval || val > maxval) {
+		ret = -EINVAL;
+		goto end;
+	}
+
+	*valp = val;
+	ret = len;
+
+end:
+	mutex_unlock(&opts->lock);
+	return ret;
+}
+
+/* generic store for bool */
+static ssize_t f_midi2_opts_bool_store(struct f_midi2_opts *opts,
+				       bool *valp, const char *page, size_t len)
+{
+	int ret;
+	bool val;
+
+	mutex_lock(&opts->lock);
+	if (opts->refcnt) {
+		ret = -EBUSY;
+		goto end;
+	}
+
+	ret = kstrtobool(page, &val);
+	if (ret)
+		goto end;
+	*valp = val;
+	ret = len;
+
+end:
+	mutex_unlock(&opts->lock);
+	return ret;
+}
+
+/* generic show/store for string */
+static ssize_t f_midi2_opts_str_show(struct f_midi2_opts *opts,
+				     const char *str, char *page)
+{
+	int result = 0;
+
+	mutex_lock(&opts->lock);
+	if (str)
+		result = scnprintf(page, PAGE_SIZE, "%s\n", str);
+	mutex_unlock(&opts->lock);
+	return result;
+}
+
+static ssize_t f_midi2_opts_str_store(struct f_midi2_opts *opts,
+				      const char **strp, size_t maxlen,
+				      const char *page, size_t len)
+{
+	char *c;
+	int ret;
+
+	mutex_lock(&opts->lock);
+	if (opts->refcnt) {
+		ret = -EBUSY;
+		goto end;
+	}
+
+	c = kstrndup(page, min(len, maxlen), GFP_KERNEL);
+	if (!c) {
+		ret = -ENOMEM;
+		goto end;
+	}
+
+	kfree(*strp);
+	make_name_string(c);
+	*strp = c;
+	ret = len;
+
+end:
+	mutex_unlock(&opts->lock);
+	return ret;
+}
+
+/*
+ * Definitions for UMP Block config
+ */
+
+/* define an uint option for block */
+#define F_MIDI2_BLOCK_OPT(name, format, minval, maxval)			\
+static ssize_t f_midi2_block_opts_##name##_show(struct config_item *item,\
+					  char *page)			\
+{									\
+	struct f_midi2_block_opts *opts = to_f_midi2_block_opts(item);	\
+	return f_midi2_opts_uint_show(opts->ep->opts, opts->info.name,	\
+				      format "\n", page);		\
+}									\
+									\
+static ssize_t f_midi2_block_opts_##name##_store(struct config_item *item,\
+					 const char *page, size_t len)	\
+{									\
+	struct f_midi2_block_opts *opts = to_f_midi2_block_opts(item);	\
+	return f_midi2_opts_uint_store(opts->ep->opts, &opts->info.name,\
+				       minval, maxval, page, len);	\
+}									\
+									\
+CONFIGFS_ATTR(f_midi2_block_opts_, name)
+
+/* define a boolean option for block */
+#define F_MIDI2_BLOCK_BOOL_OPT(name)					\
+static ssize_t f_midi2_block_opts_##name##_show(struct config_item *item,\
+					  char *page)			\
+{									\
+	struct f_midi2_block_opts *opts = to_f_midi2_block_opts(item);	\
+	return f_midi2_opts_uint_show(opts->ep->opts, opts->info.name,	\
+				      "%u\n", page);			\
+}									\
+									\
+static ssize_t f_midi2_block_opts_##name##_store(struct config_item *item,\
+					 const char *page, size_t len)	\
+{									\
+	struct f_midi2_block_opts *opts = to_f_midi2_block_opts(item);	\
+	return f_midi2_opts_bool_store(opts->ep->opts, &opts->info.name,\
+				       page, len);			\
+}									\
+									\
+CONFIGFS_ATTR(f_midi2_block_opts_, name)
+
+F_MIDI2_BLOCK_OPT(direction, "0x%x", 1, 3);
+F_MIDI2_BLOCK_OPT(first_group, "0x%x", 0, 15);
+F_MIDI2_BLOCK_OPT(num_groups, "0x%x", 1, 16);
+F_MIDI2_BLOCK_OPT(midi1_first_group, "0x%x", 0, 15);
+F_MIDI2_BLOCK_OPT(midi1_num_groups, "0x%x", 0, 16);
+F_MIDI2_BLOCK_OPT(ui_hint, "0x%x", 0, 3);
+F_MIDI2_BLOCK_OPT(midi_ci_version, "%u", 0, 1);
+F_MIDI2_BLOCK_OPT(sysex8_streams, "%u", 0, 255);
+F_MIDI2_BLOCK_OPT(is_midi1, "%u", 0, 2);
+F_MIDI2_BLOCK_BOOL_OPT(active);
+
+static ssize_t f_midi2_block_opts_name_show(struct config_item *item,
+					    char *page)
+{
+	struct f_midi2_block_opts *opts = to_f_midi2_block_opts(item);
+
+	return f_midi2_opts_str_show(opts->ep->opts, opts->info.name, page);
+}
+
+static ssize_t f_midi2_block_opts_name_store(struct config_item *item,
+					     const char *page, size_t len)
+{
+	struct f_midi2_block_opts *opts = to_f_midi2_block_opts(item);
+
+	return f_midi2_opts_str_store(opts->ep->opts, &opts->info.name, 128,
+				      page, len);
+}
+
+CONFIGFS_ATTR(f_midi2_block_opts_, name);
+
+static struct configfs_attribute *f_midi2_block_attrs[] = {
+	&f_midi2_block_opts_attr_direction,
+	&f_midi2_block_opts_attr_first_group,
+	&f_midi2_block_opts_attr_num_groups,
+	&f_midi2_block_opts_attr_midi1_first_group,
+	&f_midi2_block_opts_attr_midi1_num_groups,
+	&f_midi2_block_opts_attr_ui_hint,
+	&f_midi2_block_opts_attr_midi_ci_version,
+	&f_midi2_block_opts_attr_sysex8_streams,
+	&f_midi2_block_opts_attr_is_midi1,
+	&f_midi2_block_opts_attr_active,
+	&f_midi2_block_opts_attr_name,
+	NULL,
+};
+
+static void f_midi2_block_opts_release(struct config_item *item)
+{
+	struct f_midi2_block_opts *opts = to_f_midi2_block_opts(item);
+
+	kfree(opts->info.name);
+	kfree(opts);
+}
+
+static struct configfs_item_operations f_midi2_block_item_ops = {
+	.release	= f_midi2_block_opts_release,
+};
+
+static const struct config_item_type f_midi2_block_type = {
+	.ct_item_ops	= &f_midi2_block_item_ops,
+	.ct_attrs	= f_midi2_block_attrs,
+	.ct_owner	= THIS_MODULE,
+};
+
+/* create a f_midi2_block_opts instance for the given block number */
+static int f_midi2_block_opts_create(struct f_midi2_ep_opts *ep_opts,
+				     unsigned int blk,
+				     struct f_midi2_block_opts **block_p)
+{
+	struct f_midi2_block_opts *block_opts;
+	int ret = 0;
+
+	mutex_lock(&ep_opts->opts->lock);
+	if (ep_opts->opts->refcnt || ep_opts->blks[blk]) {
+		ret = -EBUSY;
+		goto out;
+	}
+
+	block_opts = kzalloc(sizeof(*block_opts), GFP_KERNEL);
+	if (!block_opts) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	block_opts->ep = ep_opts;
+	block_opts->id = blk;
+
+	/* set up the default values */
+	block_opts->info.direction = SNDRV_UMP_DIR_BIDIRECTION;
+	block_opts->info.first_group = 0;
+	block_opts->info.num_groups = 1;
+	block_opts->info.ui_hint = SNDRV_UMP_BLOCK_UI_HINT_BOTH;
+	block_opts->info.active = 1;
+
+	ep_opts->blks[blk] = block_opts;
+	*block_p = block_opts;
+
+ out:
+	mutex_unlock(&ep_opts->opts->lock);
+	return ret;
+}
+
+/* make_group callback for a block */
+static struct config_group *
+f_midi2_opts_block_make(struct config_group *group, const char *name)
+{
+	struct f_midi2_ep_opts *ep_opts;
+	struct f_midi2_block_opts *block_opts;
+	unsigned int blk;
+	int ret;
+
+	if (strncmp(name, "block.", 6))
+		return ERR_PTR(-EINVAL);
+	ret = kstrtouint(name + 6, 10, &blk);
+	if (ret)
+		return ERR_PTR(ret);
+
+	ep_opts = to_f_midi2_ep_opts(&group->cg_item);
+
+	if (blk >= SNDRV_UMP_MAX_BLOCKS)
+		return ERR_PTR(-EINVAL);
+	if (ep_opts->blks[blk])
+		return ERR_PTR(-EBUSY);
+	ret = f_midi2_block_opts_create(ep_opts, blk, &block_opts);
+	if (ret)
+		return ERR_PTR(ret);
+
+	config_group_init_type_name(&block_opts->group, name,
+				    &f_midi2_block_type);
+	return &block_opts->group;
+}
+
+/* drop_item callback for a block */
+static void
+f_midi2_opts_block_drop(struct config_group *group, struct config_item *item)
+{
+	struct f_midi2_block_opts *block_opts = to_f_midi2_block_opts(item);
+
+	mutex_lock(&block_opts->ep->opts->lock);
+	block_opts->ep->blks[block_opts->id] = NULL;
+	mutex_unlock(&block_opts->ep->opts->lock);
+	config_item_put(item);
+}
+
+/*
+ * Definitions for UMP Endpoint config
+ */
+
+/* define an uint option for EP */
+#define F_MIDI2_EP_OPT(name, format, minval, maxval)			\
+static ssize_t f_midi2_ep_opts_##name##_show(struct config_item *item,	\
+					     char *page)		\
+{									\
+	struct f_midi2_ep_opts *opts = to_f_midi2_ep_opts(item);	\
+	return f_midi2_opts_uint_show(opts->opts, opts->info.name,	\
+				      format "\n", page);		\
+}									\
+									\
+static ssize_t f_midi2_ep_opts_##name##_store(struct config_item *item,	\
+					   const char *page, size_t len)\
+{									\
+	struct f_midi2_ep_opts *opts = to_f_midi2_ep_opts(item);	\
+	return f_midi2_opts_uint_store(opts->opts, &opts->info.name,	\
+				       minval, maxval, page, len);	\
+}									\
+									\
+CONFIGFS_ATTR(f_midi2_ep_opts_, name)
+
+/* define a string option for EP */
+#define F_MIDI2_EP_STR_OPT(name, maxlen)				\
+static ssize_t f_midi2_ep_opts_##name##_show(struct config_item *item,	\
+					     char *page)		\
+{									\
+	struct f_midi2_ep_opts *opts = to_f_midi2_ep_opts(item);	\
+	return f_midi2_opts_str_show(opts->opts, opts->info.name, page);\
+}									\
+									\
+static ssize_t f_midi2_ep_opts_##name##_store(struct config_item *item,	\
+					 const char *page, size_t len)	\
+{									\
+	struct f_midi2_ep_opts *opts = to_f_midi2_ep_opts(item);	\
+	return f_midi2_opts_str_store(opts->opts, &opts->info.name, maxlen,\
+				      page, len);			\
+}									\
+									\
+CONFIGFS_ATTR(f_midi2_ep_opts_, name)
+
+F_MIDI2_EP_OPT(protocol, "0x%x", 1, 2);
+F_MIDI2_EP_OPT(protocol_caps, "0x%x", 1, 3);
+F_MIDI2_EP_OPT(manufacturer, "0x%x", 0, 0xffffff);
+F_MIDI2_EP_OPT(family, "0x%x", 0, 0xffff);
+F_MIDI2_EP_OPT(model, "0x%x", 0, 0xffff);
+F_MIDI2_EP_OPT(sw_revision, "0x%x", 0, 0xffffffff);
+F_MIDI2_EP_STR_OPT(ep_name, 128);
+F_MIDI2_EP_STR_OPT(product_id, 128);
+
+static struct configfs_attribute *f_midi2_ep_attrs[] = {
+	&f_midi2_ep_opts_attr_protocol,
+	&f_midi2_ep_opts_attr_protocol_caps,
+	&f_midi2_ep_opts_attr_ep_name,
+	&f_midi2_ep_opts_attr_product_id,
+	&f_midi2_ep_opts_attr_manufacturer,
+	&f_midi2_ep_opts_attr_family,
+	&f_midi2_ep_opts_attr_model,
+	&f_midi2_ep_opts_attr_sw_revision,
+	NULL,
+};
+
+static void f_midi2_ep_opts_release(struct config_item *item)
+{
+	struct f_midi2_ep_opts *opts = to_f_midi2_ep_opts(item);
+
+	kfree(opts->info.ep_name);
+	kfree(opts->info.product_id);
+	kfree(opts);
+}
+
+static struct configfs_item_operations f_midi2_ep_item_ops = {
+	.release	= f_midi2_ep_opts_release,
+};
+
+static struct configfs_group_operations f_midi2_ep_group_ops = {
+	.make_group	= f_midi2_opts_block_make,
+	.drop_item	= f_midi2_opts_block_drop,
+};
+
+static const struct config_item_type f_midi2_ep_type = {
+	.ct_item_ops	= &f_midi2_ep_item_ops,
+	.ct_group_ops	= &f_midi2_ep_group_ops,
+	.ct_attrs	= f_midi2_ep_attrs,
+	.ct_owner	= THIS_MODULE,
+};
+
+/* create a f_midi2_ep_opts instance */
+static int f_midi2_ep_opts_create(struct f_midi2_opts *opts,
+				  unsigned int index,
+				  struct f_midi2_ep_opts **ep_p)
+{
+	struct f_midi2_ep_opts *ep_opts;
+
+	ep_opts = kzalloc(sizeof(*ep_opts), GFP_KERNEL);
+	if (!ep_opts)
+		return -ENOMEM;
+
+	ep_opts->opts = opts;
+	ep_opts->index = index;
+
+	/* set up the default values */
+	ep_opts->info.protocol = 2;
+	ep_opts->info.protocol_caps = 3;
+
+	opts->eps[index] = ep_opts;
+	*ep_p = ep_opts;
+	return 0;
+}
+
+/* make_group callback for an EP */
+static struct config_group *
+f_midi2_opts_ep_make(struct config_group *group, const char *name)
+{
+	struct f_midi2_opts *opts;
+	struct f_midi2_ep_opts *ep_opts;
+	unsigned int index;
+	int ret;
+
+	if (strncmp(name, "ep.", 3))
+		return ERR_PTR(-EINVAL);
+	ret = kstrtouint(name + 3, 10, &index);
+	if (ret)
+		return ERR_PTR(ret);
+
+	opts = to_f_midi2_opts(&group->cg_item);
+	if (index >= MAX_UMP_EPS)
+		return ERR_PTR(-EINVAL);
+	if (opts->eps[index])
+		return ERR_PTR(-EBUSY);
+	ret = f_midi2_ep_opts_create(opts, index, &ep_opts);
+	if (ret)
+		return ERR_PTR(ret);
+
+	config_group_init_type_name(&ep_opts->group, name, &f_midi2_ep_type);
+	return &ep_opts->group;
+}
+
+/* drop_item callback for an EP */
+static void
+f_midi2_opts_ep_drop(struct config_group *group, struct config_item *item)
+{
+	struct f_midi2_ep_opts *ep_opts = to_f_midi2_ep_opts(item);
+
+	mutex_lock(&ep_opts->opts->lock);
+	ep_opts->opts->eps[ep_opts->index] = NULL;
+	mutex_unlock(&ep_opts->opts->lock);
+	config_item_put(item);
+}
+
+/*
+ * Definitions for card config
+ */
+
+/* define a bool option for card */
+#define F_MIDI2_BOOL_OPT(name)						\
+static ssize_t f_midi2_opts_##name##_show(struct config_item *item,	\
+					  char *page)			\
+{									\
+	struct f_midi2_opts *opts = to_f_midi2_opts(item);		\
+	return f_midi2_opts_uint_show(opts, opts->info.name,		\
+				      "%u\n", page);			\
+}									\
+									\
+static ssize_t f_midi2_opts_##name##_store(struct config_item *item,	\
+					 const char *page, size_t len)	\
+{									\
+	struct f_midi2_opts *opts = to_f_midi2_opts(item);		\
+	return f_midi2_opts_bool_store(opts, &opts->info.name,		\
+				       page, len);			\
+}									\
+									\
+CONFIGFS_ATTR(f_midi2_opts_, name)
+
+F_MIDI2_BOOL_OPT(process_ump);
+F_MIDI2_BOOL_OPT(static_block);
+
+static ssize_t f_midi2_opts_iface_name_show(struct config_item *item,
+					    char *page)
+{
+	struct f_midi2_opts *opts = to_f_midi2_opts(item);
+
+	return f_midi2_opts_str_show(opts, opts->info.iface_name, page);
+}
+
+static ssize_t f_midi2_opts_iface_name_store(struct config_item *item,
+					     const char *page, size_t len)
+{
+	struct f_midi2_opts *opts = to_f_midi2_opts(item);
+
+	return f_midi2_opts_str_store(opts, &opts->info.iface_name, 128,
+				      page, len);
+}
+
+CONFIGFS_ATTR(f_midi2_opts_, iface_name);
+
+static struct configfs_attribute *f_midi2_attrs[] = {
+	&f_midi2_opts_attr_process_ump,
+	&f_midi2_opts_attr_static_block,
+	&f_midi2_opts_attr_iface_name,
+	NULL
+};
+
+static void f_midi2_opts_release(struct config_item *item)
+{
+	struct f_midi2_opts *opts = to_f_midi2_opts(item);
+
+	usb_put_function_instance(&opts->func_inst);
+}
+
+static struct configfs_item_operations f_midi2_item_ops = {
+	.release	= f_midi2_opts_release,
+};
+
+static struct configfs_group_operations f_midi2_group_ops = {
+	.make_group	= f_midi2_opts_ep_make,
+	.drop_item	= f_midi2_opts_ep_drop,
+};
+
+static const struct config_item_type f_midi2_func_type = {
+	.ct_item_ops	= &f_midi2_item_ops,
+	.ct_group_ops	= &f_midi2_group_ops,
+	.ct_attrs	= f_midi2_attrs,
+	.ct_owner	= THIS_MODULE,
+};
+
+static void f_midi2_free_inst(struct usb_function_instance *f)
+{
+	struct f_midi2_opts *opts;
+
+	opts = container_of(f, struct f_midi2_opts, func_inst);
+
+	kfree(opts->info.iface_name);
+	kfree(opts);
+}
+
+/* gadget alloc_inst */
+static struct usb_function_instance *f_midi2_alloc_inst(void)
+{
+	struct f_midi2_opts *opts;
+	struct f_midi2_ep_opts *ep_opts;
+	struct f_midi2_block_opts *block_opts;
+	int ret;
+
+	opts = kzalloc(sizeof(*opts), GFP_KERNEL);
+	if (!opts)
+		return ERR_PTR(-ENOMEM);
+
+	mutex_init(&opts->lock);
+	opts->func_inst.free_func_inst = f_midi2_free_inst;
+	opts->info.process_ump = true;
+	opts->info.static_block = true;
+	opts->info.num_reqs = 32;
+	opts->info.req_buf_size = 512;
+
+	/* create the default ep */
+	ret = f_midi2_ep_opts_create(opts, 0, &ep_opts);
+	if (ret) {
+		kfree(opts);
+		return ERR_PTR(ret);
+	}
+
+	/* create the default block */
+	ret = f_midi2_block_opts_create(ep_opts, 0, &block_opts);
+	if (ret) {
+		kfree(ep_opts);
+		kfree(opts);
+		return ERR_PTR(ret);
+	}
+
+	/* set up the default MIDI1 (that is mandatory) */
+	block_opts->info.midi1_num_groups = 1;
+
+	config_group_init_type_name(&opts->func_inst.group, "",
+				    &f_midi2_func_type);
+
+	config_group_init_type_name(&ep_opts->group, "ep.0",
+				    &f_midi2_ep_type);
+	configfs_add_default_group(&ep_opts->group, &opts->func_inst.group);
+
+	config_group_init_type_name(&block_opts->group, "block.0",
+				    &f_midi2_block_type);
+	configfs_add_default_group(&block_opts->group, &ep_opts->group);
+
+	return &opts->func_inst;
+}
+
+static void do_f_midi2_free(struct f_midi2 *midi2, struct f_midi2_opts *opts)
+{
+	mutex_lock(&opts->lock);
+	--opts->refcnt;
+	mutex_unlock(&opts->lock);
+	kfree(midi2->string_defs);
+	kfree(midi2);
+}
+
+static void f_midi2_free(struct usb_function *f)
+{
+	do_f_midi2_free(func_to_midi2(f),
+			container_of(f->fi, struct f_midi2_opts, func_inst));
+}
+
+/* verify the parameters set up via configfs;
+ * return the number of EPs or a negative error
+ */
+static int verify_parameters(struct f_midi2_opts *opts)
+{
+	int i, j, num_eps, num_blks;
+	struct f_midi2_ep_info *ep;
+	struct f_midi2_block_info *bp;
+
+	for (num_eps = 0; num_eps < MAX_UMP_EPS && opts->eps[num_eps];
+	     num_eps++)
+		;
+	if (!num_eps) {
+		pr_err("f_midi2: No EP is defined\n");
+		return -EINVAL;
+	}
+
+	num_blks = 0;
+	for (i = 0; i < num_eps; i++) {
+		ep = &opts->eps[i]->info;
+		if (!(ep->protocol_caps & ep->protocol)) {
+			pr_err("f_midi2: Invalid protocol 0x%x (caps 0x%x) for EP %d\n",
+			       ep->protocol, ep->protocol_caps, i);
+			return -EINVAL;
+		}
+
+		for (j = 0; j < SNDRV_UMP_MAX_BLOCKS && opts->eps[i]->blks[j];
+		     j++, num_blks++) {
+			bp = &opts->eps[i]->blks[j]->info;
+			if (bp->first_group + bp->num_groups > SNDRV_UMP_MAX_GROUPS) {
+				pr_err("f_midi2: Invalid group definitions for block %d:%d\n",
+				       i, j);
+				return -EINVAL;
+			}
+
+			if (bp->midi1_num_groups) {
+				if (bp->midi1_first_group < bp->first_group ||
+				    bp->midi1_first_group + bp->midi1_num_groups >
+				    bp->first_group + bp->num_groups) {
+					pr_err("f_midi2: Invalid MIDI1 group definitions for block %d:%d\n",
+					       i, j);
+					return -EINVAL;
+				}
+			}
+		}
+	}
+	if (!num_blks) {
+		pr_err("f_midi2: No block is defined\n");
+		return -EINVAL;
+	}
+
+	return num_eps;
+}
+
+/* fill mapping between MIDI 1.0 cable and UMP EP/group */
+static void fill_midi1_cable_mapping(struct f_midi2 *midi2,
+				     struct f_midi2_ep *ep,
+				     int blk)
+{
+	const struct f_midi2_block_info *binfo = &ep->blks[blk].info;
+	struct midi1_cable_mapping *map;
+	int i, group;
+
+	if (!binfo->midi1_num_groups)
+		return;
+	if (binfo->direction != SNDRV_UMP_DIR_OUTPUT) {
+		group = binfo->midi1_first_group;
+		map = midi2->in_cable_mapping + midi2->num_midi1_in;
+		for (i = 0; i < binfo->midi1_num_groups; i++, group++, map++) {
+			if (midi2->num_midi1_in >= MAX_CABLES)
+				break;
+			map->ep = ep;
+			map->block = blk;
+			map->group = group;
+			midi2->num_midi1_in++;
+			/* store 1-based cable number */
+			ep->in_group_to_cable[group] = midi2->num_midi1_in;
+		}
+	}
+
+	if (binfo->direction != SNDRV_UMP_DIR_INPUT) {
+		group = binfo->midi1_first_group;
+		map = midi2->out_cable_mapping + midi2->num_midi1_out;
+		for (i = 0; i < binfo->midi1_num_groups; i++, group++, map++) {
+			if (midi2->num_midi1_out >= MAX_CABLES)
+				break;
+			map->ep = ep;
+			map->block = blk;
+			map->group = group;
+			midi2->num_midi1_out++;
+		}
+	}
+}
+
+/* gadget alloc callback */
+static struct usb_function *f_midi2_alloc(struct usb_function_instance *fi)
+{
+	struct f_midi2 *midi2;
+	struct f_midi2_opts *opts;
+	struct f_midi2_ep *ep;
+	struct f_midi2_block *bp;
+	int i, num_eps, blk;
+
+	midi2 = kzalloc(sizeof(*midi2), GFP_KERNEL);
+	if (!midi2)
+		return ERR_PTR(-ENOMEM);
+
+	opts = container_of(fi, struct f_midi2_opts, func_inst);
+	mutex_lock(&opts->lock);
+	num_eps = verify_parameters(opts);
+	if (num_eps < 0) {
+		mutex_unlock(&opts->lock);
+		kfree(midi2);
+		return ERR_PTR(num_eps);
+	}
+	++opts->refcnt;
+	mutex_unlock(&opts->lock);
+
+	spin_lock_init(&midi2->queue_lock);
+
+	midi2->func.name = "midi2_func";
+	midi2->func.bind = f_midi2_bind;
+	midi2->func.unbind = f_midi2_unbind;
+	midi2->func.get_alt = f_midi2_get_alt;
+	midi2->func.set_alt = f_midi2_set_alt;
+	midi2->func.setup = f_midi2_setup;
+	midi2->func.disable = f_midi2_disable;
+	midi2->func.free_func = f_midi2_free;
+
+	midi2->info = opts->info;
+	midi2->num_eps = num_eps;
+
+	for (i = 0; i < num_eps; i++) {
+		ep = &midi2->midi2_eps[i];
+		ep->info = opts->eps[i]->info;
+		ep->card = midi2;
+		for (blk = 0; blk < SNDRV_UMP_MAX_BLOCKS &&
+			     opts->eps[i]->blks[blk]; blk++) {
+			bp = &ep->blks[blk];
+			ep->num_blks++;
+			bp->info = opts->eps[i]->blks[blk]->info;
+			bp->gtb_id = ++midi2->total_blocks;
+		}
+	}
+
+	midi2->string_defs = kcalloc(midi2->total_blocks + 1,
+				     sizeof(*midi2->string_defs), GFP_KERNEL);
+	if (!midi2->string_defs) {
+		do_f_midi2_free(midi2, opts);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	if (opts->info.iface_name && *opts->info.iface_name)
+		midi2->string_defs[STR_IFACE].s = opts->info.iface_name;
+	else
+		midi2->string_defs[STR_IFACE].s = ump_ep_name(&midi2->midi2_eps[0]);
+
+	for (i = 0; i < midi2->num_eps; i++) {
+		ep = &midi2->midi2_eps[i];
+		for (blk = 0; blk < ep->num_blks; blk++) {
+			bp = &ep->blks[blk];
+			midi2->string_defs[gtb_to_str_id(bp->gtb_id)].s =
+				ump_fb_name(&bp->info);
+
+			fill_midi1_cable_mapping(midi2, ep, blk);
+		}
+	}
+
+	if (!midi2->num_midi1_in && !midi2->num_midi1_out) {
+		pr_err("f_midi2: MIDI1 definition is missing\n");
+		do_f_midi2_free(midi2, opts);
+		return ERR_PTR(-EINVAL);
+	}
+
+	return &midi2->func;
+}
+
+DECLARE_USB_FUNCTION_INIT(midi2, f_midi2_alloc_inst, f_midi2_alloc);
+
+MODULE_LICENSE("GPL");

drivers/usb/gadget/function/f_ncm.c

···
 	return container_of(f, struct f_ncm, port.func);
 }
 
-/* peak (theoretical) bulk transfer rate in bits-per-second */
-static inline unsigned ncm_bitrate(struct usb_gadget *g)
-{
-	if (!g)
-		return 0;
-	else if (gadget_is_superspeed(g) && g->speed >= USB_SPEED_SUPER_PLUS)
-		return 4250000000U;
-	else if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER)
-		return 3750000000U;
-	else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
-		return 13 * 512 * 8 * 1000 * 8;
-	else
-		return 19 *  64 * 1 * 1000 * 8;
-}
-
 /*-------------------------------------------------------------------------*/
 
 /*
···
 
 		/* SPEED_CHANGE data is up/down speeds in bits/sec */
 		data = req->buf + sizeof *event;
-		data[0] = cpu_to_le32(ncm_bitrate(cdev->gadget));
+		data[0] = cpu_to_le32(gether_bitrate(cdev->gadget));
 		data[1] = data[0];
 
-		DBG(cdev, "notify speed %u\n", ncm_bitrate(cdev->gadget));
+		DBG(cdev, "notify speed %u\n", gether_bitrate(cdev->gadget));
 		ncm->notify_state = NCM_NOTIFY_CONNECT;
 		break;
 	}
···
 	hrtimer_init(&ncm->task_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
 	ncm->task_timer.function = ncm_tx_timeout;
 
-	DBG(cdev, "CDC Network: %s speed IN/%s OUT/%s NOTIFY/%s\n",
-			gadget_is_superspeed(c->cdev->gadget) ? "super" :
-			gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
+	DBG(cdev, "CDC Network: IN/%s OUT/%s NOTIFY/%s\n",
 			ncm->port.in_ep->name, ncm->port.out_ep->name,
 			ncm->notify->name);
 	return 0;

drivers/usb/gadget/function/f_obex.c

···
 	if (status)
 		goto fail;
 
-	dev_dbg(&cdev->gadget->dev, "obex ttyGS%d: %s speed IN/%s OUT/%s\n",
+	dev_dbg(&cdev->gadget->dev, "obex ttyGS%d: IN/%s OUT/%s\n",
 		obex->port_num,
-		gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
 		obex->port.in->name, obex->port.out->name);
 
 	return 0;

drivers/usb/gadget/function/f_rndis.c

···
 	return container_of(f, struct f_rndis, port.func);
 }
 
-/* peak (theoretical) bulk transfer rate in bits-per-second */
-static unsigned int bitrate(struct usb_gadget *g)
-{
-	if (gadget_is_superspeed(g) && g->speed >= USB_SPEED_SUPER_PLUS)
-		return 4250000000U;
-	if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER)
-		return 3750000000U;
-	else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
-		return 13 * 512 * 8 * 1000 * 8;
-	else
-		return 19 * 64 * 1 * 1000 * 8;
-}
-
 /*-------------------------------------------------------------------------*/
 
 /*
···
 	DBG(cdev, "%s\n", __func__);
 
 	rndis_set_param_medium(rndis->params, RNDIS_MEDIUM_802_3,
-				bitrate(cdev->gadget) / 100);
+				gether_bitrate(cdev->gadget) / 100);
 	rndis_signal_connect(rndis->params);
 }
 
···
 	 * until we're activated via set_alt().
 	 */
 
-	DBG(cdev, "RNDIS: %s speed IN/%s OUT/%s NOTIFY/%s\n",
-			gadget_is_superspeed(c->cdev->gadget) ? "super" :
-			gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
+	DBG(cdev, "RNDIS: IN/%s OUT/%s NOTIFY/%s\n",
 			rndis->port.in_ep->name, rndis->port.out_ep->name,
 			rndis->notify->name);
 	return 0;

drivers/usb/gadget/function/f_serial.c

···
 			gser_ss_function, gser_ss_function);
 	if (status)
 		goto fail;
-	dev_dbg(&cdev->gadget->dev, "generic ttyGS%d: %s speed IN/%s OUT/%s\n",
+	dev_dbg(&cdev->gadget->dev, "generic ttyGS%d: IN/%s OUT/%s\n",
 		gser->port_num,
-		gadget_is_superspeed(c->cdev->gadget) ? "super" :
-		gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
 		gser->port.in->name, gser->port.out->name);
 	return 0;
 

drivers/usb/gadget/function/f_sourcesink.c

···
 	if (ret)
 		return ret;
 
-	DBG(cdev, "%s speed %s: IN/%s, OUT/%s, ISO-IN/%s, ISO-OUT/%s\n",
-	    (gadget_is_superspeed(c->cdev->gadget) ? "super" :
-	     (gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full")),
+	DBG(cdev, "%s: IN/%s, OUT/%s, ISO-IN/%s, ISO-OUT/%s\n",
 			f->name, ss->in_ep->name, ss->out_ep->name,
 			ss->iso_in_ep ? ss->iso_in_ep->name : "<none>",
 			ss->iso_out_ep ? ss->iso_out_ep->name : "<none>");

drivers/usb/gadget/function/f_subset.c

···
 	 * until we're activated via set_alt().
 	 */
 
-	DBG(cdev, "CDC Subset: %s speed IN/%s OUT/%s\n",
-			gadget_is_superspeed(c->cdev->gadget) ? "super" :
-			gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
+	DBG(cdev, "CDC Subset: IN/%s OUT/%s\n",
 			geth->port.in_ep->name, geth->port.out_ep->name);
 	return 0;
 

drivers/usb/gadget/function/f_uvc.c

···
 	}
 	uvc->enable_interrupt_ep = opts->enable_interrupt_ep;
 
-	if (gadget_is_superspeed(c->cdev->gadget))
-		ep = usb_ep_autoconfig_ss(cdev->gadget, &uvc_ss_streaming_ep,
-					  &uvc_ss_streaming_comp);
-	else if (gadget_is_dualspeed(cdev->gadget))
-		ep = usb_ep_autoconfig(cdev->gadget, &uvc_hs_streaming_ep);
-	else
-		ep = usb_ep_autoconfig(cdev->gadget, &uvc_fs_streaming_ep);
-
+	ep = usb_ep_autoconfig(cdev->gadget, &uvc_fs_streaming_ep);
 	if (!ep) {
 		uvcg_info(f, "Unable to allocate streaming EP\n");
 		goto error;
 	}
 	uvc->video.ep = ep;
 
-	uvc_fs_streaming_ep.bEndpointAddress = uvc->video.ep->address;
 	uvc_hs_streaming_ep.bEndpointAddress = uvc->video.ep->address;
 	uvc_ss_streaming_ep.bEndpointAddress = uvc->video.ep->address;
 
···
 		f->fs_descriptors = NULL;
 		goto error;
 	}
-	if (gadget_is_dualspeed(cdev->gadget)) {
-		f->hs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_HIGH);
-		if (IS_ERR(f->hs_descriptors)) {
-			ret = PTR_ERR(f->hs_descriptors);
-			f->hs_descriptors = NULL;
-			goto error;
-		}
+
+	f->hs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_HIGH);
+	if (IS_ERR(f->hs_descriptors)) {
+		ret = PTR_ERR(f->hs_descriptors);
+		f->hs_descriptors = NULL;
+		goto error;
 	}
-	if (gadget_is_superspeed(c->cdev->gadget)) {
-		f->ss_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_SUPER);
-		if (IS_ERR(f->ss_descriptors)) {
-			ret = PTR_ERR(f->ss_descriptors);
-			f->ss_descriptors = NULL;
-			goto error;
-		}
+
+	f->ss_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_SUPER);
+	if (IS_ERR(f->ss_descriptors)) {
+		ret = PTR_ERR(f->ss_descriptors);
+		f->ss_descriptors = NULL;
+		goto error;
 	}
 
 	/* Preallocate control endpoint request. */

drivers/usb/gadget/function/u_ether.c

···
 
 #define DEFAULT_QLEN	2	/* double buffering by default */
 
-/* for dual-speed hardware, use deeper queues at high/super speed */
+/* use deeper queues at high/super speed */
 static inline int qlen(struct usb_gadget *gadget, unsigned qmult)
 {
-	if (gadget_is_dualspeed(gadget) && (gadget->speed == USB_SPEED_HIGH ||
-					    gadget->speed >= USB_SPEED_SUPER))
+	if (gadget->speed == USB_SPEED_HIGH || gadget->speed >= USB_SPEED_SUPER)
 		return qmult * DEFAULT_QLEN;
 	else
 		return DEFAULT_QLEN;

drivers/usb/gadget/function/u_ether.h

···
 	return true;
 }
 
+/* peak (theoretical) bulk transfer rate in bits-per-second */
+static inline unsigned int gether_bitrate(struct usb_gadget *g)
+{
+	if (g->speed >= USB_SPEED_SUPER_PLUS)
+		return 4250000000U;
+	if (g->speed == USB_SPEED_SUPER)
+		return 3750000000U;
+	else if (g->speed == USB_SPEED_HIGH)
+		return 13 * 512 * 8 * 1000 * 8;
+	else
+		return 19 * 64 * 1 * 1000 * 8;
+}
+
 #endif /* __U_ETHER_H */

drivers/usb/gadget/function/u_midi2.h

···
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Utility definitions for MIDI 2.0 function
+ */
+
+#ifndef U_MIDI2_H
+#define U_MIDI2_H
+
+#include <linux/usb/composite.h>
+#include <sound/asound.h>
+
+struct f_midi2_opts;
+struct f_midi2_ep_opts;
+struct f_midi2_block_opts;
+
+/* UMP Function Block info */
+struct f_midi2_block_info {
+	unsigned int direction;		/* FB direction: 1-3 */
+	unsigned int first_group;	/* first UMP group: 0-15 */
+	unsigned int num_groups;	/* number of UMP groups: 1-16 */
+	unsigned int midi1_first_group;	/* first UMP group for MIDI 1.0 */
+	unsigned int midi1_num_groups;	/* number of UMP groups for MIDI 1.0 */
+	unsigned int ui_hint;		/* UI-hint: 0-3 */
+	unsigned int midi_ci_version;	/* MIDI-CI version: 0-255 */
+	unsigned int sysex8_streams;	/* number of sysex8 streams: 0-255 */
+	unsigned int is_midi1;		/* MIDI 1.0 port: 0-2 */
+	bool active;			/* FB active flag: bool */
+	const char *name;		/* FB name */
+};
+
+/* UMP Endpoint info */
+struct f_midi2_ep_info {
+	unsigned int protocol_caps;	/* protocol capabilities: 1-3 */
+	unsigned int protocol;		/* default protocol: 1-2 */
+	unsigned int manufacturer;	/* manufacturer id: 0-0xffffff */
+	unsigned int family;		/* device family id: 0-0xffff */
+	unsigned int model;		/* device model id: 0x-0xffff */
+	unsigned int sw_revision;	/* software revision: 32bit */
+
+	const char *ep_name;		/* Endpoint name */
+	const char *product_id;		/* Product ID */
+};
+
+struct f_midi2_card_info {
+	bool process_ump;		/* process UMP stream: bool */
+	bool static_block;		/* static FBs: bool */
+	unsigned int req_buf_size;	/* request buffer size */
+	unsigned int num_reqs;		/* number of requests */
+	const char *iface_name;		/* interface name */
+};
+
+struct f_midi2_block_opts {
+	struct config_group group;
+	unsigned int id;
+	struct f_midi2_block_info info;
+	struct f_midi2_ep_opts *ep;
+};
+
+struct f_midi2_ep_opts {
+	struct config_group group;
+	unsigned int index;
+	struct f_midi2_ep_info info;
+	struct f_midi2_block_opts *blks[SNDRV_UMP_MAX_BLOCKS];
+	struct f_midi2_opts *opts;
+};
+
+#define MAX_UMP_EPS		4
+#define MAX_CABLES		16
+
+struct f_midi2_opts {
+	struct usb_function_instance func_inst;
+	struct mutex lock;
+	int refcnt;
+
+	struct f_midi2_card_info info;
+
+	unsigned int num_eps;
+	struct f_midi2_ep_opts *eps[MAX_UMP_EPS];
+};
+
+#endif /* U_MIDI2_H */

drivers/usb/gadget/function/u_phonet.h

···
 struct net_device *gphonet_setup_default(void);
 void gphonet_set_gadget(struct net_device *net, struct usb_gadget *g);
 int gphonet_register_netdev(struct net_device *net);
-int phonet_bind_config(struct usb_configuration *c, struct net_device *dev);
 void gphonet_cleanup(struct net_device *dev);
 
 #endif /* __U_PHONET_H */

drivers/usb/gadget/function/u_serial.h

···
 void gserial_suspend(struct gserial *p);
 void gserial_resume(struct gserial *p);
 
-/* functions are bound to configurations by a config or gadget driver */
-int gser_bind_config(struct usb_configuration *c, u8 port_num);
-int obex_bind_config(struct usb_configuration *c, u8 port_num);
-
 #endif /* __U_SERIAL_H */

drivers/usb/gadget/function/uvc.h

···
  */
 
 extern void uvc_function_setup_continue(struct uvc_device *uvc);
-extern void uvc_endpoint_stream(struct uvc_device *dev);
-
 extern void uvc_function_connect(struct uvc_device *uvc);
 extern void uvc_function_disconnect(struct uvc_device *uvc);
 

drivers/usb/gadget/udc/aspeed-vhub/core.c

···
 	vhub->port_irq_mask = GENMASK(VHUB_IRQ_DEV1_BIT + vhub->max_ports - 1,
 				      VHUB_IRQ_DEV1_BIT);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	vhub->regs = devm_ioremap_resource(&pdev->dev, res);
+	vhub->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(vhub->regs)) {
 		dev_err(&pdev->dev, "Failed to map resources\n");
 		return PTR_ERR(vhub->regs);

drivers/usb/gadget/udc/aspeed_udc.c

···
 	enum usb_device_speed max_speed;
 	struct device *dev = &pdev->dev;
 	struct ast_udc_dev *udc;
-	struct resource *res;
 	int rc;
 
 	udc = devm_kzalloc(&pdev->dev, sizeof(struct ast_udc_dev), GFP_KERNEL);
···
 	udc->gadget.name = "aspeed-udc";
 	udc->gadget.dev.init_name = "gadget";
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	udc->reg = devm_ioremap_resource(&pdev->dev, res);
+	udc->reg = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(udc->reg)) {
 		dev_err(&pdev->dev, "Failed to map resources\n");
 		return PTR_ERR(udc->reg);

drivers/usb/gadget/udc/atmel_usba_udc.c

···
 	udc->gadget = usba_gadget_template;
 	INIT_LIST_HEAD(&udc->gadget.ep_list);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, CTRL_IOMEM_ID);
-	udc->regs = devm_ioremap_resource(&pdev->dev, res);
+	udc->regs = devm_platform_get_and_ioremap_resource(pdev, CTRL_IOMEM_ID, &res);
 	if (IS_ERR(udc->regs))
 		return PTR_ERR(udc->regs);
 	dev_info(&pdev->dev, "MMIO registers at %pR mapped at %p\n",
 		 res, udc->regs);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, FIFO_IOMEM_ID);
-	udc->fifo = devm_ioremap_resource(&pdev->dev, res);
+	udc->fifo = devm_platform_get_and_ioremap_resource(pdev, FIFO_IOMEM_ID, &res);
 	if (IS_ERR(udc->fifo))
 		return PTR_ERR(udc->fifo);
 	dev_info(&pdev->dev, "FIFO at %pR mapped at %p\n", res, udc->fifo);

drivers/usb/gadget/udc/core.c

···
  * @allow_connect: Indicates whether UDC is allowed to be pulled up.
  * Set/cleared by gadget_(un)bind_driver() after gadget driver is bound or
  * unbound.
+ * @vbus_work: work routine to handle VBUS status change notifications.
  * @connect_lock: protects udc->started, gadget->connect,
  * gadget->allow_connect and gadget->deactivate. The routines
  * usb_gadget_connect_locked(), usb_gadget_disconnect_locked(),

drivers/usb/gadget/udc/fsl_qe_udc.c

···
 	} else if ((request_type & USB_RECIP_MASK) == USB_RECIP_ENDPOINT) {
 		/* Get endpoint status */
 		int pipe = index & USB_ENDPOINT_NUMBER_MASK;
+		if (pipe >= USB_MAX_ENDPOINTS)
+			goto stall;
 		struct qe_ep *target_ep = &udc->eps[pipe];
 		u16 usep;
 

drivers/usb/gadget/udc/fsl_udc_core.c

···
 #include <linux/platform_device.h>
 #include <linux/fsl_devices.h>
 #include <linux/dmapool.h>
-#include <linux/of_device.h>
 
 #include <asm/byteorder.h>
 #include <asm/io.h>
···
 static struct usb_request *
 fsl_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags)
 {
-	struct fsl_req *req = NULL;
+	struct fsl_req *req;
 
 	req = kzalloc(sizeof *req, gfp_flags);
 	if (!req)

drivers/usb/gadget/udc/gr_udc.c

···
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/errno.h>
···
 #include <linux/dmapool.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
-#include <linux/of_platform.h>
-#include <linux/of_irq.h>
-#include <linux/of_address.h>
+#include <linux/of.h>
 
 #include <asm/byteorder.h>
 
···
 		return PTR_ERR(regs);
 
 	dev->irq = platform_get_irq(pdev, 0);
-	if (dev->irq <= 0)
-		return -ENODEV;
+	if (dev->irq < 0)
+		return dev->irq;
 
 	/* Some core configurations has separate irqs for IN and OUT events */
 	dev->irqi = platform_get_irq(pdev, 1);
 	if (dev->irqi > 0) {
 		dev->irqo = platform_get_irq(pdev, 2);
-		if (dev->irqo <= 0)
-			return -ENODEV;
+		if (dev->irqo < 0)
+			return dev->irqo;
 	} else {
 		dev->irqi = 0;
 	}

drivers/usb/gadget/udc/max3420_udc.c

···
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/bitfield.h>
-#include <linux/of_address.h>
-#include <linux/of_device.h>
-#include <linux/of_platform.h>
+#include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/prefetch.h>
 #include <linux/usb/ch9.h>

drivers/usb/gadget/udc/mv_u3d_core.c

···
 static struct usb_request *
 mv_u3d_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags)
 {
-	struct mv_u3d_req *req = NULL;
+	struct mv_u3d_req *req;
 
 	req = kzalloc(sizeof *req, gfp_flags);
 	if (!req)
···
 
 static int mv_u3d_probe(struct platform_device *dev)
 {
-	struct mv_u3d *u3d = NULL;
+	struct mv_u3d *u3d;
 	struct mv_usb_platform_data *pdata = dev_get_platdata(&dev->dev);
 	int retval = 0;
 	struct resource *r;

drivers/usb/gadget/udc/mv_udc_core.c

···
 static struct usb_request *
 mv_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags)
 {
-	struct mv_req *req = NULL;
+	struct mv_req *req;
 
 	req = kzalloc(sizeof *req, gfp_flags);
 	if (!req)

drivers/usb/gadget/udc/pxa27x_udc.c

···
 #include <linux/prefetch.h>
 #include <linux/byteorder/generic.h>
 #include <linux/platform_data/pxa2xx_udc.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/of_gpio.h>
 
 #include <linux/usb.h>

drivers/usb/gadget/udc/renesas_usb3.c

···
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/phy/phy.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>

drivers/usb/gadget/udc/renesas_usbf.c

···
 #include <linux/iopoll.h>
 #include <linux/kernel.h>
 #include <linux/kfifo.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/types.h>
 #include <linux/usb/composite.h>
···
 static struct platform_driver udc_driver = {
 	.driver = {
 		.name = "usbf_renesas",
-		.owner = THIS_MODULE,
 		.of_match_table = usbf_match,
 	},
 	.probe          = usbf_probe,

drivers/usb/gadget/udc/snps_udc_plat.c

···
 	spin_lock_init(&udc->lock);
 	udc->dev = dev;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	udc->virt_addr = devm_ioremap_resource(dev, res);
+	udc->virt_addr = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(udc->virt_addr))
 		return PTR_ERR(udc->virt_addr);
 
···
 };
 #endif
 
-#if defined(CONFIG_OF)
 static const struct of_device_id of_udc_match[] = {
 	{ .compatible = "brcm,ns2-udc", },
 	{ .compatible = "brcm,cygnus-udc", },
···
 	{ }
 };
 MODULE_DEVICE_TABLE(of, of_udc_match);
-#endif
 
 static struct platform_driver udc_plat_driver = {
 	.probe		= udc_plat_probe,
 	.remove_new	= udc_plat_remove,
 	.driver		= {
 		.name	= "snps-udc-plat",
-		.of_match_table = of_match_ptr(of_udc_match),
+		.of_match_table = of_udc_match,
 #ifdef CONFIG_PM_SLEEP
 		.pm	= &udc_plat_pm_ops,
 #endif

drivers/usb/gadget/udc/tegra-xudc.c

···
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/phy/phy.h>
 #include <linux/phy/tegra/xusb.h>
 #include <linux/pm_domain.h>

drivers/usb/gadget/udc/udc-xilinx.c

···
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/module.h>
-#include <linux/of_address.h>
-#include <linux/of_device.h>
-#include <linux/of_platform.h>
-#include <linux/of_irq.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
 #include <linux/prefetch.h>
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
···
 	case USB_RECIP_INTERFACE:
 		break;
 	case USB_RECIP_ENDPOINT:
-		epnum = udc->setup.wIndex & USB_ENDPOINT_NUMBER_MASK;
+		epnum = le16_to_cpu(udc->setup.wIndex) & USB_ENDPOINT_NUMBER_MASK;
 		if (epnum >= XUSB_MAX_ENDPOINTS)
 			goto stall;
 		target_ep = &udc->ep[epnum];
 		epcfgreg = udc->read_fn(udc->addr + target_ep->offset);
 		halt = epcfgreg & XUSB_EP_CFG_STALL_MASK;
-		if (udc->setup.wIndex & USB_DIR_IN) {
+		if (le16_to_cpu(udc->setup.wIndex) & USB_DIR_IN) {
 			if (!target_ep->is_in)
 				goto stall;
 		} else {
···
 	}
 
 	req->usb_req.length = 2;
-	*(u16 *)req->usb_req.buf = cpu_to_le16(status);
+	*(__le16 *)req->usb_req.buf = cpu_to_le16(status);
 	ret = __xudc_ep0_queue(ep0, req);
 	if (ret == 0)
 		return;
···
 
 	switch (udc->setup.bRequestType) {
 	case USB_RECIP_DEVICE:
-		switch (udc->setup.wValue) {
+		switch (le16_to_cpu(udc->setup.wValue)) {
 		case USB_DEVICE_TEST_MODE:
 			/*
 			 * The Test Mode will be executed
···
 		break;
 	case USB_RECIP_ENDPOINT:
 		if (!udc->setup.wValue) {
-			endpoint = udc->setup.wIndex & USB_ENDPOINT_NUMBER_MASK;
+			endpoint = le16_to_cpu(udc->setup.wIndex) &
+					       USB_ENDPOINT_NUMBER_MASK;
 			if (endpoint >= XUSB_MAX_ENDPOINTS) {
 				xudc_ep0_stall(udc);
 				return;
 			}
 			target_ep = &udc->ep[endpoint];
-			outinbit = udc->setup.wIndex & USB_ENDPOINT_DIR_MASK;
+			outinbit = le16_to_cpu(udc->setup.wIndex) &
+					       USB_ENDPOINT_DIR_MASK;
 			outinbit = outinbit >> 7;
 
 			/* Make sure direction matches.*/
···
 	memcpy(&setup, ep0rambase, 8);
 
 	udc->setup = setup;
-	udc->setup.wValue = cpu_to_le16(setup.wValue);
-	udc->setup.wIndex = cpu_to_le16(setup.wIndex);
-	udc->setup.wLength = cpu_to_le16(setup.wLength);
+	udc->setup.wValue = cpu_to_le16((u16 __force)setup.wValue);
+	udc->setup.wIndex = cpu_to_le16((u16 __force)setup.wIndex);
+	udc->setup.wLength = cpu_to_le16((u16 __force)setup.wLength);
 
 	/* Clear previous requests */
 	xudc_nuke(ep0, -ECONNRESET);
···
 	u16 count = 0;
 	u16 length;
 	u8 *ep0rambase;
-	u8 test_mode = udc->setup.wIndex >> 8;
+	u8 test_mode = le16_to_cpu(udc->setup.wIndex) >> 8;
 
 	req = list_first_entry(&ep0->queue, struct xusb_req, queue);
 	bytes_to_tx = req->usb_req.length - req->usb_req.actual;
···
 		case USB_REQ_SET_ADDRESS:
 			/* Set the address of the device.*/
 			udc->write_fn(udc->addr, XUSB_ADDRESS_OFFSET,
-				      udc->setup.wValue);
+				      le16_to_cpu(udc->setup.wValue));
 			break;
 		case USB_REQ_SET_FEATURE:
 			if (udc->setup.bRequestType ==
 					USB_RECIP_DEVICE) {
-				if (udc->setup.wValue ==
+				if (le16_to_cpu(udc->setup.wValue) ==
 						USB_DEVICE_TEST_MODE)
 					udc->write_fn(udc->addr,
 						      XUSB_TESTMODE_OFFSET,
···
 	udc->req->usb_req.buf = buff;
 
 	/* Map the registers */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	udc->addr = devm_ioremap_resource(&pdev->dev, res);
+	udc->addr = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(udc->addr))
 		return PTR_ERR(udc->addr);
 

drivers/usb/host/ehci-atmel.c

···
 	pr_debug("Initializing Atmel-SoC USB Host Controller\n");
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0) {
-		retval = -ENODEV;
+	if (irq < 0) {
+		retval = irq;
 		goto fail_create_hcd;
 	}
 
···
 	}
 	atmel_ehci = hcd_to_atmel_ehci_priv(hcd);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(hcd->regs)) {
 		retval = PTR_ERR(hcd->regs);
 		goto fail_request_resource;

drivers/usb/host/ehci-brcm.c

···
 		return err;
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0)
-		return irq ? irq : -EINVAL;
+	if (irq < 0)
+		return irq;
 
 	/* Hook the hub control routine to work around a bug */
 	ehci_brcm_hc_driver.hub_control = ehci_brcm_hub_control;

drivers/usb/host/ehci-exynos.c

···
 	if (err)
 		goto fail_clk;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(hcd->regs)) {
 		err = PTR_ERR(hcd->regs);
 		goto fail_io;

drivers/usb/host/ehci-fsl.c

···
 #include <linux/usb/otg.h>
 #include <linux/platform_device.h>
 #include <linux/fsl_devices.h>
-#include <linux/of_platform.h>
+#include <linux/of.h>
 #include <linux/io.h>
 
 #include "ehci.h"
···
 		goto err1;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(hcd->regs)) {
 		retval = PTR_ERR(hcd->regs);
 		goto err2;

drivers/usb/host/ehci-hcd.c

···
 
 	/* normal [4.15.1.2] or error [4.15.1.1] completion */
 	if (likely ((status & (STS_INT|STS_ERR)) != 0)) {
-		if (likely ((status & STS_ERR) == 0))
+		if (likely ((status & STS_ERR) == 0)) {
 			INCR(ehci->stats.normal);
-		else
+		} else {
+			/* Force to check port status */
+			if (ehci->has_ci_pec_bug)
+				status |= STS_PCD;
 			INCR(ehci->stats.error);
+		}
 		bh = 1;
 	}
 

drivers/usb/host/ehci-hub.c

···
 
 		if ((temp & mask) != 0 || test_bit(i, &ehci->port_c_suspend)
 				|| (ehci->reset_done[i] && time_after_eq(
-					jiffies, ehci->reset_done[i]))) {
+					jiffies, ehci->reset_done[i]))
+				|| ehci_has_ci_pec_bug(ehci, temp)) {
 			if (i < 7)
 			    buf [0] |= 1 << (i + 1);
 			else
···
 			status |= USB_PORT_STAT_C_CONNECTION << 16;
 		if (temp & PORT_PEC)
 			status |= USB_PORT_STAT_C_ENABLE << 16;
+
+		if (ehci_has_ci_pec_bug(ehci, temp)) {
+			status |= USB_PORT_STAT_C_ENABLE << 16;
+			ehci_info(ehci,
+				"PE is cleared by HW port:%d PORTSC:%08x\n",
+				wIndex + 1, temp);
+		}
 
 		if ((temp & PORT_OCC) && (!ignore_oc && !ehci->spurious_oc)){
 			status |= USB_PORT_STAT_C_OVERCURRENT << 16;

drivers/usb/host/ehci-mv.c

···
 		goto err_put_hcd;
 	}
 
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	ehci_mv->base = devm_ioremap_resource(&pdev->dev, r);
+	ehci_mv->base = devm_platform_get_and_ioremap_resource(pdev, 0, &r);
 	if (IS_ERR(ehci_mv->base)) {
 		retval = PTR_ERR(ehci_mv->base);
 		goto err_put_hcd;

drivers/usb/host/ehci-npcm7xx.c

···
 	int irq;
 	int retval;
 
-	dev_dbg(&pdev->dev,	"initializing npcm7xx ehci USB Controller\n");
+	dev_dbg(&pdev->dev, "initializing npcm7xx ehci USB Controller\n");
 
 	if (usb_disabled())
 		return -ENODEV;
···
 		goto fail;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(hcd->regs)) {
 		retval = PTR_ERR(hcd->regs);
 		goto err_put_hcd;

drivers/usb/host/ehci-omap.c

···
 	if (irq < 0)
 		return irq;
 
-	res =  platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	regs = devm_ioremap_resource(dev, res);
+	regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);
 

drivers/usb/host/ehci-orion.c

···
 #include <linux/platform_data/usb-ehci-orion.h>
 #include <linux/of.h>
 #include <linux/phy/phy.h>
-#include <linux/of_device.h>
-#include <linux/of_irq.h>
 #include <linux/usb.h>
 #include <linux/usb/hcd.h>
 #include <linux/io.h>
···
 	pr_debug("Initializing Orion-SoC USB Host Controller\n");
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0) {
-		err = -ENODEV;
+	if (irq < 0) {
+		err = irq;
 		goto err;
 	}
 
···
 	if (err)
 		goto err;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	regs = devm_ioremap_resource(&pdev->dev, res);
+	regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(regs)) {
 		err = PTR_ERR(regs);
 		goto err;

drivers/usb/host/ehci-platform.c

···
 			goto err_reset;
 	}
 
-	res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
+	hcd->regs = devm_platform_get_and_ioremap_resource(dev, 0, &res_mem);
 	if (IS_ERR(hcd->regs)) {
 		err = PTR_ERR(hcd->regs);
 		goto err_power;

drivers/usb/host/ehci-sched.c

···
 static void enable_periodic(struct ehci_hcd *ehci)
 {
 	if (ehci->periodic_count++)
-		return;
+		goto out;
 
 	/* Stop waiting to turn off the periodic schedule */
 	ehci->enabled_hrtimer_events &= ~BIT(EHCI_HRTIMER_DISABLE_PERIODIC);
 
 	/* Don't start the schedule until PSS is 0 */
 	ehci_poll_PSS(ehci);
+out:
 	turn_on_io_watchdog(ehci);
 }
 

drivers/usb/host/ehci-sh.c

···
 		return -ENODEV;
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0) {
-		ret = -ENODEV;
+	if (irq < 0) {
+		ret = irq;
 		goto fail_create_hcd;
 	}
 
···
 		goto fail_create_hcd;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(hcd->regs)) {
 		ret = PTR_ERR(hcd->regs);
 		goto fail_request_resource;

drivers/usb/host/ehci-spear.c

···
 		goto fail;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(hcd->regs)) {
 		retval = PTR_ERR(hcd->regs);
 		goto err_put_hcd;

drivers/usb/host/ehci-st.c

···
 	irq = platform_get_irq(dev, 0);
 	if (irq < 0)
 		return irq;
-	res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
-	if (!res_mem) {
-		dev_err(&dev->dev, "no memory resource provided");
-		return -ENXIO;
-	}
 
 	hcd = usb_create_hcd(&ehci_platform_hc_driver, &dev->dev,
 			     dev_name(&dev->dev));
···
 			goto err_put_clks;
 	}
 
-	hcd->rsrc_start = res_mem->start;
-	hcd->rsrc_len = resource_size(res_mem);
-
-	hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
+	hcd->regs = devm_platform_get_and_ioremap_resource(dev, 0, &res_mem);
 	if (IS_ERR(hcd->regs)) {
 		err = PTR_ERR(hcd->regs);
 		goto err_put_clks;
 	}
+	hcd->rsrc_start = res_mem->start;
+	hcd->rsrc_len = resource_size(res_mem);
 
 	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (err)

drivers/usb/host/ehci.h

···
 	unsigned		has_fsl_port_bug:1; /* FreeScale */
 	unsigned		has_fsl_hs_errata:1;	/* Freescale HS quirk */
 	unsigned		has_fsl_susp_errata:1;	/* NXP SUSP quirk */
+	unsigned		has_ci_pec_bug:1;	/* ChipIdea PEC bug */
 	unsigned		big_endian_mmio:1;
 	unsigned		big_endian_desc:1;
 	unsigned		big_endian_capbase:1;
···
  * after setting SUSP bit.
  */
 #define ehci_has_fsl_susp_errata(e)	((e)->has_fsl_susp_errata)
+
+/*
+ * Some Freescale/NXP processors using ChipIdea IP have a bug in which
+ * disabling the port (PE is cleared) does not cause PEC to be asserted
+ * when frame babble is detected.
+ */
+#define ehci_has_ci_pec_bug(e, portsc) \
+	((e)->has_ci_pec_bug && ((e)->command & CMD_PSE) \
+	 && !(portsc & PORT_PEC) && !(portsc & PORT_PE))
 
 /*
  * While most USB host controllers implement their registers in

drivers/usb/host/fhci-hcd.c

···
 #include <linux/io.h>
 #include <linux/usb.h>
 #include <linux/usb/hcd.h>
+#include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
-#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/gpio/consumer.h>
 #include <soc/fsl/qe/qe.h>

drivers/usb/host/fsl-mph-dr-of.c

···
 #include <linux/fsl_devices.h>
 #include <linux/err.h>
 #include <linux/io.h>
-#include <linux/of_platform.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/clk.h>
 #include <linux/module.h>
 #include <linux/dma-mapping.h>

drivers/usb/host/isp1362-hcd.c

···
 	if (IS_ERR(addr_reg))
 		return PTR_ERR(addr_reg);
 
-	data = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	data_reg = devm_ioremap_resource(&pdev->dev, data);
+	data_reg = devm_platform_get_and_ioremap_resource(pdev, 0, &data);
 	if (IS_ERR(data_reg))
 		return PTR_ERR(data_reg);
 

drivers/usb/host/ohci-at91.c

···
 #include <linux/clk.h>
 #include <linux/dma-mapping.h>
 #include <linux/gpio/consumer.h>
-#include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/atmel.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mfd/syscon.h>
+#include <linux/of.h>
 #include <linux/regmap.h>
 #include <linux/usb.h>
 #include <linux/usb/hcd.h>
···
 	int irq;
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_dbg(dev, "hcd probe: missing irq resource\n");
+	if (irq < 0)
 		return irq;
-	}
 
 	hcd = usb_create_hcd(driver, dev, "at91");
 	if (!hcd)
 		return -ENOMEM;
 	ohci_at91 = hcd_to_ohci_at91_priv(hcd);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(dev, res);
+	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(hcd->regs)) {
 		retval = PTR_ERR(hcd->regs);
 		goto err;

drivers/usb/host/ohci-da8xx.c

···
 #include <linux/jiffies.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/phy/phy.h>
 #include <linux/platform_data/usb-davinci.h>
···
 			goto err;
 	}
 
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(dev, mem);
+	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &mem);
 	if (IS_ERR(hcd->regs)) {
 		error = PTR_ERR(hcd->regs);
 		goto err;

drivers/usb/host/ohci-exynos.c

···
 	if (err)
 		goto fail_clk;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(hcd->regs)) {
 		err = PTR_ERR(hcd->regs);
 		goto fail_io;

drivers/usb/host/ohci-nxp.c

···
 		goto fail_hcd;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(hcd->regs)) {
 		ret = PTR_ERR(hcd->regs);
 		goto fail_resource;

drivers/usb/host/ohci-platform.c

···
 			goto err_reset;
 	}
 
-	res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
+	hcd->regs = devm_platform_get_and_ioremap_resource(dev, 0, &res_mem);
 	if (IS_ERR(hcd->regs)) {
 		err = PTR_ERR(hcd->regs);
 		goto err_power;

drivers/usb/host/ohci-ppc-of.c

···
  */
 
 #include <linux/signal.h>
+#include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
-#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 
 static int
 ohci_ppc_of_start(struct usb_hcd *hcd)

drivers/usb/host/ohci-pxa27x.c

···
 	if (!hcd)
 		return -ENOMEM;
 
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&pdev->dev, r);
+	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &r);
 	if (IS_ERR(hcd->regs)) {
 		retval = PTR_ERR(hcd->regs);
 		goto err;

drivers/usb/host/ohci-sm501.c

···
 	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	usb_put_hcd(hcd);
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (mem)
-		release_mem_region(mem->start, resource_size(mem));
+	release_mem_region(mem->start, resource_size(mem));
 
 	/* mask interrupts and disable power */
 

drivers/usb/host/ohci-spear.c

···
 		goto fail;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(hcd->regs)) {
 		retval = PTR_ERR(hcd->regs);
 		goto err_put_hcd;

drivers/usb/host/ohci-st.c

···
 	if (irq < 0)
 		return irq;
 
-	res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
-	if (!res_mem) {
-		dev_err(&dev->dev, "no memory resource provided");
-		return -ENXIO;
-	}
-
 	hcd = usb_create_hcd(&ohci_platform_hc_driver, &dev->dev,
 			dev_name(&dev->dev));
 	if (!hcd)
···
 			goto err_power;
 	}
 
-	hcd->rsrc_start = res_mem->start;
-	hcd->rsrc_len = resource_size(res_mem);
-
-	hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
+	hcd->regs = devm_platform_get_and_ioremap_resource(dev, 0, &res_mem);
 	if (IS_ERR(hcd->regs)) {
 		err = PTR_ERR(hcd->regs);
 		goto err_power;
 	}
+	hcd->rsrc_start = res_mem->start;
+	hcd->rsrc_len = resource_size(res_mem);
+
 	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (err)
 		goto err_power;

drivers/usb/host/oxu210hp-hcd.c

···
 		return irq;
 	dev_dbg(&pdev->dev, "IRQ resource %d\n", irq);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(&pdev->dev, res);
+	base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(base)) {
 		ret = PTR_ERR(base);
 		goto error;

drivers/usb/host/uhci-platform.c

···
 
 	uhci = hcd_to_uhci(hcd);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(hcd->regs)) {
 		ret = PTR_ERR(hcd->regs);
 		goto err_rmr;

drivers/usb/host/xhci-mem.c

···
 		slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_LS);
 		max_packets = MAX_PACKET(8);
 		break;
-	case USB_SPEED_WIRELESS:
-		xhci_dbg(xhci, "FIXME xHCI doesn't support wireless speeds\n");
-		return -EINVAL;
 	default:
 		/* Speed was set earlier, this shouldn't happen. */
 		return -EINVAL;

drivers/usb/host/xhci-plat.c

···
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/usb/phy.h>
 #include <linux/slab.h>

drivers/usb/host/xhci-rcar.c

···
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/usb/phy.h>
 
 #include "xhci.h"

drivers/usb/host/xhci-tegra.c

···
 #include <linux/iopoll.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/phy/phy.h>
 #include <linux/phy/tegra/xusb.h>
···
 	return err;
 }
 
+static void tegra_xusb_disable(struct tegra_xusb *tegra)
+{
+	tegra_xusb_powergate_partitions(tegra);
+	tegra_xusb_powerdomain_remove(tegra->dev, tegra);
+	tegra_xusb_phy_disable(tegra);
+	tegra_xusb_clk_disable(tegra);
+	regulator_bulk_disable(tegra->soc->num_supplies, tegra->supplies);
+}
+
 static void tegra_xusb_remove(struct platform_device *pdev)
 {
 	struct tegra_xusb *tegra = platform_get_drvdata(pdev);
···
 
 	pm_runtime_put(&pdev->dev);
 
-	tegra_xusb_powergate_partitions(tegra);
-
-	tegra_xusb_powerdomain_remove(&pdev->dev, tegra);
-
-	tegra_xusb_phy_disable(tegra);
-	tegra_xusb_clk_disable(tegra);
-	regulator_bulk_disable(tegra->soc->num_supplies, tegra->supplies);
+	tegra_xusb_disable(tegra);
 	tegra_xusb_padctl_put(tegra->padctl);
+}
+
+static void tegra_xusb_shutdown(struct platform_device *pdev)
+{
+	struct tegra_xusb *tegra = platform_get_drvdata(pdev);
+
+	pm_runtime_get_sync(&pdev->dev);
+	disable_irq(tegra->xhci_irq);
+	xhci_shutdown(tegra->hcd);
+	tegra_xusb_disable(tegra);
 }
 
 static bool xhci_hub_ports_suspended(struct xhci_hub *hub)
···
 static struct platform_driver tegra_xusb_driver = {
 	.probe = tegra_xusb_probe,
 	.remove_new = tegra_xusb_remove,
+	.shutdown = tegra_xusb_shutdown,
 	.driver = {
 		.name = "tegra-xusb",
 		.pm = &tegra_xusb_pm_ops,

drivers/usb/host/xhci.c

···
 	case USB_SPEED_SUPER_PLUS:
 		return SS_BLOCK;
 	case USB_SPEED_UNKNOWN:
-	case USB_SPEED_WIRELESS:
 	default:
 		/* Should never happen */
 		return 1;
···
 	case USB_SPEED_HIGH:
 		interval_bw->overhead[HS_OVERHEAD_TYPE] -= 1;
 		break;
-	case USB_SPEED_SUPER:
-	case USB_SPEED_SUPER_PLUS:
-	case USB_SPEED_UNKNOWN:
-	case USB_SPEED_WIRELESS:
+	default:
 		/* Should never happen because only LS/FS/HS endpoints will get
 		 * added to the endpoint list.
 		 */
···
 	case USB_SPEED_HIGH:
 		interval_bw->overhead[HS_OVERHEAD_TYPE] += 1;
 		break;
-	case USB_SPEED_SUPER:
-	case USB_SPEED_SUPER_PLUS:
-	case USB_SPEED_UNKNOWN:
-	case USB_SPEED_WIRELESS:
+	default:
 		/* Should never happen because only LS/FS/HS endpoints will get
 		 * added to the endpoint list.
 		 */

drivers/usb/misc/cypress_cy7c63.c

···
 static int cypress_probe(struct usb_interface *interface,
 			 const struct usb_device_id *id)
 {
-	struct cypress *dev = NULL;
+	struct cypress *dev;
 	int retval = -ENOMEM;
 
 	/* allocate memory for our device state and initialize it */

drivers/usb/misc/cytherm.c

···
 			 const struct usb_device_id *id)
 {
 	struct usb_device *udev = interface_to_usbdev(interface);
-	struct usb_cytherm *dev = NULL;
+	struct usb_cytherm *dev;
 	int retval = -ENOMEM;
 
-	dev = kzalloc (sizeof(struct usb_cytherm), GFP_KERNEL);
+	dev = kzalloc(sizeof(struct usb_cytherm), GFP_KERNEL);
 	if (!dev)
 		goto error_mem;
 
 	dev->udev = usb_get_dev(udev);
 
-	usb_set_intfdata (interface, dev);
+	usb_set_intfdata(interface, dev);
 
 	dev->brightness = 0xFF;
 
-	dev_info (&interface->dev,
+	dev_info(&interface->dev,
 		  "Cypress thermometer device now attached\n");
 	return 0;
 
···
 {
 	struct usb_cytherm *dev;
 
-	dev = usb_get_intfdata (interface);
+	dev = usb_get_intfdata(interface);
 
 	/* first remove the files, then NULL the pointer */
-	usb_set_intfdata (interface, NULL);
+	usb_set_intfdata(interface, NULL);
 
 	usb_put_dev(dev->udev);
 

drivers/usb/misc/onboard_usb_hub.c

···
 
 #include "onboard_usb_hub.h"
 
+/*
+ * Use generic names, as the actual names might differ between hubs. If a new
+ * hub requires more than the currently supported supplies, add a new one here.
+ */
+static const char * const supply_names[] = {
+	"vdd",
+	"vdd2",
+};
+
+#define MAX_SUPPLIES ARRAY_SIZE(supply_names)
+
 static void onboard_hub_attach_usb_driver(struct work_struct *work);
 
 static struct usb_device_driver onboard_hub_usbdev_driver;
···
 };
 
 struct onboard_hub {
-	struct regulator *vdd;
+	struct regulator_bulk_data supplies[MAX_SUPPLIES];
 	struct device *dev;
 	const struct onboard_hub_pdata *pdata;
 	struct gpio_desc *reset_gpio;
···
 {
 	int err;
 
-	err = regulator_enable(hub->vdd);
+	err = regulator_bulk_enable(hub->pdata->num_supplies, hub->supplies);
 	if (err) {
-		dev_err(hub->dev, "failed to enable regulator: %d\n", err);
+		dev_err(hub->dev, "failed to enable supplies: %d\n", err);
 		return err;
 	}
 
···
 
 	gpiod_set_value_cansleep(hub->reset_gpio, 1);
 
-	err = regulator_disable(hub->vdd);
+	err = regulator_bulk_disable(hub->pdata->num_supplies, hub->supplies);
 	if (err) {
-		dev_err(hub->dev, "failed to disable regulator: %d\n", err);
+		dev_err(hub->dev, "failed to disable supplies: %d\n", err);
 		return err;
 	}
 
···
 	const struct of_device_id *of_id;
 	struct device *dev = &pdev->dev;
 	struct onboard_hub *hub;
+	unsigned int i;
 	int err;
 
 	hub = devm_kzalloc(dev, sizeof(*hub), GFP_KERNEL);
···
 	if (!hub->pdata)
 		return -EINVAL;
 
-	hub->vdd = devm_regulator_get(dev, "vdd");
-	if (IS_ERR(hub->vdd))
-		return PTR_ERR(hub->vdd);
+	if (hub->pdata->num_supplies > MAX_SUPPLIES)
+		return dev_err_probe(dev, -EINVAL, "max %zu supplies supported!\n",
+				     MAX_SUPPLIES);
+
+	for (i = 0; i < hub->pdata->num_supplies; i++)
+		hub->supplies[i].supply = supply_names[i];
+
+	err = devm_regulator_bulk_get(dev, hub->pdata->num_supplies, hub->supplies);
+	if (err) {
+		dev_err(dev, "Failed to get regulator supplies: %d\n", err);
+		return err;
+	}
 
 	hub->reset_gpio = devm_gpiod_get_optional(dev, "reset",
 						  GPIOD_OUT_HIGH);
···
 
 /************************** USB driver **************************/
 
+#define VENDOR_ID_CYPRESS	0x04b4
 #define VENDOR_ID_GENESYS	0x05e3
 #define VENDOR_ID_MICROCHIP	0x0424
 #define VENDOR_ID_REALTEK	0x0bda
···
 }
 
 static const struct usb_device_id onboard_hub_id_table[] = {
+	{ USB_DEVICE(VENDOR_ID_CYPRESS, 0x6504) }, /* CYUSB33{0,1,2}x/CYUSB230x 3.0 */
+	{ USB_DEVICE(VENDOR_ID_CYPRESS, 0x6506) }, /* CYUSB33{0,1,2}x/CYUSB230x 2.0 */
 	{ USB_DEVICE(VENDOR_ID_GENESYS, 0x0608) }, /* Genesys Logic GL850G USB 2.0 */
 	{ USB_DEVICE(VENDOR_ID_GENESYS, 0x0610) }, /* Genesys Logic GL852G USB 2.0 */
+	{ USB_DEVICE(VENDOR_ID_GENESYS, 0x0620) }, /* Genesys Logic GL3523 USB 3.1 */
 	{ USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2514) }, /* USB2514B USB 2.0 */
 	{ USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2517) }, /* USB2517 USB 2.0 */
 	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x0411) }, /* RTS5411 USB 3.1 */

drivers/usb/misc/onboard_usb_hub.h

···
 
 struct onboard_hub_pdata {
 	unsigned long reset_us;		/* reset pulse width in us */
+	unsigned int num_supplies;	/* number of supplies */
 };
 
 static const struct onboard_hub_pdata microchip_usb424_data = {
 	.reset_us = 1,
+	.num_supplies = 1,
 };
 
 static const struct onboard_hub_pdata realtek_rts5411_data = {
 	.reset_us = 0,
+	.num_supplies = 1,
 };
 
 static const struct onboard_hub_pdata ti_tusb8041_data = {
 	.reset_us = 3000,
+	.num_supplies = 1,
+};
+
+static const struct onboard_hub_pdata cypress_hx3_data = {
+	.reset_us = 10000,
+	.num_supplies = 2,
 };
 
 static const struct onboard_hub_pdata genesys_gl850g_data = {
 	.reset_us = 3,
+	.num_supplies = 1,
 };
 
 static const struct onboard_hub_pdata genesys_gl852g_data = {
 	.reset_us = 50,
+	.num_supplies = 1,
 };
 
 static const struct onboard_hub_pdata vialab_vl817_data = {
 	.reset_us = 10,
+	.num_supplies = 1,
 };
 
 static const struct of_device_id onboard_hub_match[] = {
···
 	{ .compatible = "usb424,2517", .data = &microchip_usb424_data, },
 	{ .compatible = "usb451,8140", .data = &ti_tusb8041_data, },
 	{ .compatible = "usb451,8142", .data = &ti_tusb8041_data, },
+	{ .compatible = "usb4b4,6504", .data = &cypress_hx3_data, },
+	{ .compatible = "usb4b4,6506", .data = &cypress_hx3_data, },
 	{ .compatible = "usb5e3,608", .data = &genesys_gl850g_data, },
 	{ .compatible = "usb5e3,610", .data = &genesys_gl852g_data, },
+	{ .compatible = "usb5e3,620", .data = &genesys_gl852g_data, },
 	{ .compatible = "usbbda,411", .data = &realtek_rts5411_data, },
 	{ .compatible = "usbbda,5411", .data = &realtek_rts5411_data, },
 	{ .compatible = "usbbda,414", .data = &realtek_rts5411_data, },

drivers/usb/misc/usb251xb.c

···
 #include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/nls.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 

drivers/usb/misc/usb_u132.h

···
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
-* Common Header File for the Elan Digital Systems U132 adapter
-* this file should be included by both the "ftdi-u132" and
-* the "u132-hcd" modules.
-*
-* Copyright(C) 2006 Elan Digital Systems Limited
-*(http://www.elandigitalsystems.com)
-*
-* Author and Maintainer - Tony Olech - Elan Digital Systems
-*([e-mail])
-*
-* The driver was written by Tony Olech([e-mail])
-* based on various USB client drivers in the 2.6.15 linux kernel
-* with constant reference to the 3rd Edition of Linux Device Drivers
-* published by O'Reilly
-*
-* The U132 adapter is a USB to CardBus adapter specifically designed
-* for PC cards that contain an OHCI host controller. Typical PC cards
-* are the Orange Mobile 3G Option GlobeTrotter Fusion card.
-*
-* The U132 adapter will *NOT *work with PC cards that do not contain
-* an OHCI controller. A simple way to test whether a PC card has an
-* OHCI controller as an interface is to insert the PC card directly
-* into a laptop(or desktop) with a CardBus slot and if "lspci" shows
-* a new USB controller and "lsusb -v" shows a new OHCI Host Controller
-* then there is a good chance that the U132 adapter will support the
-* PC card.(you also need the specific client driver for the PC card)
-*
-* Please inform the Author and Maintainer about any PC cards that
-* contain OHCI Host Controller and work when directly connected to
-* an embedded CardBus slot but do not work when they are connected
-* via an ELAN U132 adapter.
-*
-* The driver consists of two modules, the "ftdi-u132" module is
-* a USB client driver that interfaces to the FTDI chip within
-* the U132 adapter manufactured by Elan Digital Systems, and the
-* "u132-hcd" module is a USB host controller driver that talks
-* to the OHCI controller within CardBus card that are inserted
-* in the U132 adapter.
-*
-* The "ftdi-u132" module should be loaded automatically by the
-* hot plug system when the U132 adapter is plugged in. The module
-* initialises the adapter which mostly consists of synchronising
-* the FTDI chip, before continuously polling the adapter to detect
-* PC card insertions. As soon as a PC card containing a recognised
-* OHCI controller is seen the "ftdi-u132" module explicitly requests
-* the kernel to load the "u132-hcd" module.
-*
-* The "ftdi-u132" module provides the interface to the inserted
-* PC card and the "u132-hcd" module uses the API to send and receive
-* data. The API features call-backs, so that part of the "u132-hcd"
-* module code will run in the context of one of the kernel threads
-* of the "ftdi-u132" module.
-*
-*/
-int ftdi_elan_switch_on_diagnostics(int number);
-void ftdi_elan_gone_away(struct platform_device *pdev);
-void start_usb_lock_device_tracing(void);
-struct u132_platform_data {
-        u16 vendor;
-        u16 device;
-        u8 potpg;
-        void (*port_power) (struct device *dev, int is_on);
-        void (*reset) (struct device *dev);
-};
-int usb_ftdi_elan_edset_single(struct platform_device *pdev, u8 ed_number,
-        void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-        void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-        int toggle_bits, int error_count, int condition_code, int repeat_number,
-         int halted, int skipped, int actual, int non_null));
-int usb_ftdi_elan_edset_output(struct platform_device *pdev, u8 ed_number,
-        void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-        void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-        int toggle_bits, int error_count, int condition_code, int repeat_number,
-         int halted, int skipped, int actual, int non_null));
-int usb_ftdi_elan_edset_empty(struct platform_device *pdev, u8 ed_number,
-        void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-        void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-        int toggle_bits, int error_count, int condition_code, int repeat_number,
-         int halted, int skipped, int actual, int non_null));
-int usb_ftdi_elan_edset_input(struct platform_device *pdev, u8 ed_number,
-        void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-        void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-        int toggle_bits, int error_count, int condition_code, int repeat_number,
-         int halted, int skipped, int actual, int non_null));
-int usb_ftdi_elan_edset_setup(struct platform_device *pdev, u8 ed_number,
-        void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-        void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-        int toggle_bits, int error_count, int condition_code, int repeat_number,
-         int halted, int skipped, int actual, int non_null));
-int usb_ftdi_elan_edset_flush(struct platform_device *pdev, u8 ed_number,
-        void *endp);
-int usb_ftdi_elan_read_pcimem(struct platform_device *pdev, int mem_offset,
-			      u8 width, u32 *data);
-int usb_ftdi_elan_write_pcimem(struct platform_device *pdev, int mem_offset,
-			       u8 width, u32 data);

drivers/usb/misc/usbsevseg.c

···
 	const struct usb_device_id *id)
 {
 	struct usb_device *udev = interface_to_usbdev(interface);
-	struct usb_sevsegdev *mydev = NULL;
+	struct usb_sevsegdev *mydev;
 	int rc = -ENOMEM;
 
 	mydev = kzalloc(sizeof(struct usb_sevsegdev), GFP_KERNEL);

drivers/usb/mtu3/mtu3.h

···
 #include <linux/extcon.h>
 #include <linux/interrupt.h>
 #include <linux/list.h>
+#include <linux/of.h>
 #include <linux/phy/phy.h>
 #include <linux/regulator/consumer.h>
 #include <linux/usb.h>

drivers/usb/mtu3/mtu3_host.c

···
 #include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/mfd/syscon.h>
+#include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/regmap.h>
 

drivers/usb/musb/cppi_dma.h

···
 	struct list_head		tx_complete;
 };
 
-/* CPPI IRQ handler */
-extern irqreturn_t cppi_interrupt(int, void *);
-
 struct cppi41_dma_channel {
 	struct dma_channel channel;
 	struct cppi41_dma_controller *controller;

drivers/usb/musb/jz4740.c

···
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/phy/phy.h>
 #include <linux/platform_device.h>
 #include <linux/usb/role.h>

drivers/usb/musb/mediatek.c

···
 #include <linux/clk.h>
 #include <linux/dma-mapping.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/usb/role.h>

drivers/usb/musb/mpfs.c

···
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/usb/usb_phy_generic.h>
 #include "musb_core.h"

drivers/usb/musb/musb_core.c

···
 	int		irq = platform_get_irq_byname(pdev, "mc");
 	void __iomem	*base;
 
-	if (irq <= 0)
-		return -ENODEV;
+	if (irq < 0)
+		return irq;
 
 	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base))

drivers/usb/musb/musb_dma.h

···
 extern void tusb_dma_controller_destroy(struct dma_controller *c);
 
 extern struct dma_controller *
-cppi_dma_controller_create(struct musb *musb, void __iomem *base);
-extern void cppi_dma_controller_destroy(struct dma_controller *c);
-
-extern struct dma_controller *
 cppi41_dma_controller_create(struct musb *musb, void __iomem *base);
 extern void cppi41_dma_controller_destroy(struct dma_controller *c);
 

drivers/usb/musb/musb_dsps.c

···
 #include <linux/sizes.h>
 
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/of_address.h>
-#include <linux/of_irq.h>
 #include <linux/usb/of.h>
 
 #include <linux/debugfs.h>

drivers/usb/musb/musb_gadget.c

···
 struct usb_request *musb_alloc_request(struct usb_ep *ep, gfp_t gfp_flags)
 {
 	struct musb_ep		*musb_ep = to_musb_ep(ep);
-	struct musb_request	*request = NULL;
+	struct musb_request	*request;
 
 	request = kzalloc(sizeof *request, gfp_flags);
 	if (!request)

drivers/usb/musb/sunxi.c

···
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/phy/phy-sun4i-usb.h>
 #include <linux/platform_device.h>
 #include <linux/reset.h>

drivers/usb/musb/tusb6010.c

···
 #include <linux/usb.h>
 #include <linux/irq.h>
 #include <linux/io.h>
+#include <linux/iopoll.h>
 #include <linux/device.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
···
 	void __iomem	*tbase = musb->ctrl_base;
 	unsigned long	flags;
 	u32		reg;
-	int		i;
+	int		ret;
 
 	/*
 	 * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and
···
 	 * provide then PGOOD signal to TUSB6010 which will release it from reset.
 	 */
 	gpiod_set_value(glue->enable, 1);
-	msleep(1);
 
 	/* Wait for 100ms until TUSB6010 pulls INT pin down */
-	i = 100;
-	while (i && gpiod_get_value(glue->intpin)) {
-		msleep(1);
-		i--;
-	}
-	if (!i) {
-		pr_err("tusb: Powerup respones failed\n");
-		return -ENODEV;
+	ret = read_poll_timeout(gpiod_get_value, reg, !reg, 5000, 100000, true,
+				glue->intpin);
+	if (ret) {
+		pr_err("tusb: Powerup response failed\n");
+		return ret;
 	}
 
 	spin_lock_irqsave(&musb->lock, flags);

drivers/usb/phy/phy-mxs-usb.c

···
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/io.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/regmap.h>
 #include <linux/mfd/syscon.h>
 #include <linux/iopoll.h>
···
 
 static bool mxs_phy_is_otg_host(struct mxs_phy *mxs_phy)
 {
-	void __iomem *base = mxs_phy->phy.io_priv;
-	u32 phyctrl = readl(base + HW_USBPHY_CTRL);
-
-	if (IS_ENABLED(CONFIG_USB_OTG) &&
-			!(phyctrl & BM_USBPHY_CTRL_OTG_ID_VALUE))
-		return true;
-
-	return false;
+	return IS_ENABLED(CONFIG_USB_OTG) &&
+		mxs_phy->phy.last_event == USB_EVENT_ID;
 }
 
 static void mxs_phy_disconnect_line(struct mxs_phy *mxs_phy, bool on)
 {
 	bool vbus_is_on = false;
+	enum usb_phy_events last_event = mxs_phy->phy.last_event;
 
 	/* If the SoCs don't need to disconnect line without vbus, quit */
 	if (!(mxs_phy->data->flags & MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS))
···
 
 	vbus_is_on = mxs_phy_get_vbus_status(mxs_phy);
 
-	if (on && !vbus_is_on && !mxs_phy_is_otg_host(mxs_phy))
+	if (on && ((!vbus_is_on && !mxs_phy_is_otg_host(mxs_phy))
+		|| (last_event == USB_EVENT_VBUS)))
 		__mxs_phy_disconnect_line(mxs_phy, true);
 	else
 		__mxs_phy_disconnect_line(mxs_phy, false);

drivers/usb/phy/phy-tegra-usb.c

···
 #include <linux/iopoll.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
+#include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/resource.h>
 #include <linux/slab.h>

drivers/usb/renesas_usbhs/common.c

···
 #include <linux/gpio/consumer.h>
 #include <linux/io.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/pm_runtime.h>
 #include <linux/reset.h>
 #include <linux/slab.h>

drivers/usb/renesas_usbhs/rza.c

···
 
 #include <linux/delay.h>
 #include <linux/io.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include "common.h"
 #include "rza.h"
 

drivers/usb/renesas_usbhs/rza2.c

···
 
 #include <linux/delay.h>
 #include <linux/io.h>
-#include <linux/of_device.h>
 #include <linux/phy/phy.h>
 #include "common.h"
 #include "rza.h"

drivers/usb/serial/option.c

···
 #define QUECTEL_PRODUCT_EM05G			0x030a
 #define QUECTEL_PRODUCT_EM060K			0x030b
 #define QUECTEL_PRODUCT_EM05G_CS		0x030c
+#define QUECTEL_PRODUCT_EM05GV2			0x030e
 #define QUECTEL_PRODUCT_EM05CN_SG		0x0310
 #define QUECTEL_PRODUCT_EM05G_SG		0x0311
 #define QUECTEL_PRODUCT_EM05CN			0x0312
···
 	  .driver_info = RSVD(6) | ZLP },
 	{ USB_DEVICE_INTERFACE_CLASS(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM05G, 0xff),
 	  .driver_info = RSVD(6) | ZLP },
+	{ USB_DEVICE_INTERFACE_CLASS(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM05GV2, 0xff),
+	  .driver_info = RSVD(4) | ZLP },
 	{ USB_DEVICE_INTERFACE_CLASS(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM05G_CS, 0xff),
 	  .driver_info = RSVD(6) | ZLP },
 	{ USB_DEVICE_INTERFACE_CLASS(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM05G_GR, 0xff),
···
 	{ USB_DEVICE(0x0489, 0xe0b5),						/* Foxconn T77W968 ESIM */
 	  .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x0489, 0xe0db, 0xff),			/* Foxconn T99W265 MBIM */
+	  .driver_info = RSVD(3) },
+	{ USB_DEVICE_INTERFACE_CLASS(0x0489, 0xe0ee, 0xff),			/* Foxconn T99W368 MBIM */
+	  .driver_info = RSVD(3) },
+	{ USB_DEVICE_INTERFACE_CLASS(0x0489, 0xe0f0, 0xff),			/* Foxconn T99W373 MBIM */
 	  .driver_info = RSVD(3) },
 	{ USB_DEVICE(0x1508, 0x1001),						/* Fibocom NL668 (IOT version) */
 	  .driver_info = RSVD(4) | RSVD(5) | RSVD(6) },

drivers/usb/serial/xr_serial.c

···
 #define XR_GPIO_MODE_SEL_DTR_DSR	0x2
 #define XR_GPIO_MODE_SEL_RS485		0x3
 #define XR_GPIO_MODE_SEL_RS485_ADDR	0x4
+#define XR_GPIO_MODE_RS485_TX_H		0x8
 #define XR_GPIO_MODE_TX_TOGGLE		0x100
 #define XR_GPIO_MODE_RX_TOGGLE		0x200
 
···
 struct xr_data {
 	const struct xr_type *type;
 	u8 channel;			/* zero-based index or interface number */
+	struct serial_rs485 rs485;
 };
 
 static int xr_set_reg(struct usb_serial_port *port, u8 channel, u16 reg, u16 val)
···
 	struct xr_data *data = usb_get_serial_port_data(port);
 	const struct xr_type *type = data->type;
 	u16 flow, gpio_mode;
+	bool rs485_enabled;
 	int ret;
 
 	ret = xr_get_reg_uart(port, type->gpio_mode, &gpio_mode);
···
 	/* Set GPIO mode for controlling the pins manually by default. */
 	gpio_mode &= ~XR_GPIO_MODE_SEL_MASK;
 
-	if (C_CRTSCTS(tty) && C_BAUD(tty) != B0) {
+	rs485_enabled = !!(data->rs485.flags & SER_RS485_ENABLED);
+	if (rs485_enabled) {
+		dev_dbg(&port->dev, "Enabling RS-485\n");
+		gpio_mode |= XR_GPIO_MODE_SEL_RS485;
+		if (data->rs485.flags & SER_RS485_RTS_ON_SEND)
+			gpio_mode &= ~XR_GPIO_MODE_RS485_TX_H;
+		else
+			gpio_mode |= XR_GPIO_MODE_RS485_TX_H;
+	}
+
+	if (C_CRTSCTS(tty) && C_BAUD(tty) != B0 && !rs485_enabled) {
 		dev_dbg(&port->dev, "Enabling hardware flow ctrl\n");
 		gpio_mode |= XR_GPIO_MODE_SEL_RTS_CTS;
 		flow = XR_UART_FLOW_MODE_HW;
···
 		dev_err(&port->dev, "Failed to set line coding: %d\n", ret);
 
 	kfree(lc);
+}
+
+static void xr_sanitize_serial_rs485(struct serial_rs485 *rs485)
+{
+	if (!(rs485->flags & SER_RS485_ENABLED)) {
+		memset(rs485, 0, sizeof(*rs485));
+		return;
+	}
+
+	/* RTS always toggles after TX */
+	if (rs485->flags & SER_RS485_RTS_ON_SEND)
+		rs485->flags &= ~SER_RS485_RTS_AFTER_SEND;
+	else
+		rs485->flags |= SER_RS485_RTS_AFTER_SEND;
+
+	/* Only the flags are implemented at the moment */
+	rs485->flags &= SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND |
+			SER_RS485_RTS_AFTER_SEND;
+	rs485->delay_rts_before_send = 0;
+	rs485->delay_rts_after_send = 0;
+	memset(rs485->padding, 0, sizeof(rs485->padding));
+}
+
+static int xr_get_rs485_config(struct tty_struct *tty,
+			       struct serial_rs485 __user *argp)
+{
+	struct usb_serial_port *port = tty->driver_data;
+	struct xr_data *data = usb_get_serial_port_data(port);
+
+	down_read(&tty->termios_rwsem);
+	if (copy_to_user(argp, &data->rs485, sizeof(data->rs485))) {
+		up_read(&tty->termios_rwsem);
+		return -EFAULT;
+	}
+	up_read(&tty->termios_rwsem);
+
+	return 0;
+}
+
+static int xr_set_rs485_config(struct tty_struct *tty,
+			       struct serial_rs485 __user *argp)
+{
+	struct usb_serial_port *port = tty->driver_data;
+	struct xr_data *data = usb_get_serial_port_data(port);
+	struct serial_rs485 rs485;
+
+	if (copy_from_user(&rs485, argp, sizeof(rs485)))
+		return -EFAULT;
+	xr_sanitize_serial_rs485(&rs485);
+
+	down_write(&tty->termios_rwsem);
+	data->rs485 = rs485;
+	xr_set_flow_mode(tty, port, NULL);
+	up_write(&tty->termios_rwsem);
+
+	if (copy_to_user(argp, &rs485, sizeof(rs485)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int xr_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+
+	switch (cmd) {
+	case TIOCGRS485:
+		return xr_get_rs485_config(tty, argp);
+	case TIOCSRS485:
+		return xr_set_rs485_config(tty, argp);
+	}
+
+	return -ENOIOCTLCMD;
 }
 
 static void xr_set_termios(struct tty_struct *tty,
···
 	.set_termios		= xr_set_termios,
 	.tiocmget		= xr_tiocmget,
 	.tiocmset		= xr_tiocmset,
+	.ioctl			= xr_ioctl,
 	.dtr_rts		= xr_dtr_rts
 };
 

drivers/usb/typec/altmodes/displayport.c

···
 	alt->ops = &dp_altmode_ops;
 
 	fwnode = dev_fwnode(alt->dev.parent->parent); /* typec_port fwnode */
-	dp->connector_fwnode = fwnode_find_reference(fwnode, "displayport", 0);
+	if (fwnode_property_present(fwnode, "displayport"))
+		dp->connector_fwnode = fwnode_find_reference(fwnode, "displayport", 0);
+	else
+		dp->connector_fwnode = fwnode_handle_get(fwnode); /* embedded DP */
 	if (IS_ERR(dp->connector_fwnode))
 		dp->connector_fwnode = NULL;
 

drivers/usb/typec/bus.c

···
  *
  * Notifies the partner of @adev about Attention command.
  */
-void typec_altmode_attention(struct typec_altmode *adev, u32 vdo)
+int typec_altmode_attention(struct typec_altmode *adev, u32 vdo)
 {
-	struct typec_altmode *pdev = &to_altmode(adev)->partner->adev;
+	struct altmode *partner = to_altmode(adev)->partner;
+	struct typec_altmode *pdev;
+
+	if (!partner)
+		return -ENODEV;
+
+	pdev = &partner->adev;
 
 	if (pdev->ops && pdev->ops->attention)
 		pdev->ops->attention(pdev, vdo);
+
+	return 0;
 }
 EXPORT_SYMBOL_GPL(typec_altmode_attention);
 

drivers/usb/typec/mux/intel_pmc_mux.c

···
 };
 
 /* Common Mode Data bits */
-#define PMC_USB_ALTMODE_ACTIVE_CABLE	BIT(2)
+#define PMC_USB_ALTMODE_RETIMER_CABLE	BIT(2)
 
 #define PMC_USB_ALTMODE_ORI_SHIFT	1
 #define PMC_USB_ALTMODE_UFP_SHIFT	3
···
 #define PMC_USB_ALTMODE_TBT_TYPE	BIT(17)
 #define PMC_USB_ALTMODE_CABLE_TYPE	BIT(18)
 #define PMC_USB_ALTMODE_ACTIVE_LINK	BIT(20)
+#define PMC_USB_ALTMODE_ACTIVE_CABLE	BIT(22)
 #define PMC_USB_ALTMODE_FORCE_LSR	BIT(23)
 #define PMC_USB_ALTMODE_CABLE_SPD(_s_)	(((_s_) & GENMASK(2, 0)) << 25)
 #define   PMC_USB_ALTMODE_CABLE_USB31	1
···
 	  IOM_PORT_STATUS_DHPD_HPD_STATUS_SHIFT) &			\
 	 IOM_PORT_STATUS_DHPD_HPD_STATUS_ASSERT)
 
+/* IOM port status register */
+#define IOM_PORT_STATUS_REGS(_offset_, _size_)	((_offset_) | (_size_))
+#define IOM_PORT_STATUS_REGS_SZ_MASK		BIT(0)
+#define IOM_PORT_STATUS_REGS_SZ_4		0
+#define IOM_PORT_STATUS_REGS_SZ_8		1
+#define IOM_PORT_STATUS_REGS_OFFSET(_d_)				\
+	((_d_) & ~IOM_PORT_STATUS_REGS_SZ_MASK)
+#define IOM_PORT_STATUS_REGS_SIZE(_d_)					\
+	(4 << ((_d_) & IOM_PORT_STATUS_REGS_SZ_MASK))
+
 struct pmc_usb;
 
 struct pmc_usb_port {
···
 	struct acpi_device *iom_adev;
 	void __iomem *iom_base;
 	u32 iom_port_status_offset;
+	u8 iom_port_status_size;
 
 	struct dentry *dentry;
 };
···
 
 	port->iom_status = readl(port->pmc->iom_base +
 				 port->pmc->iom_port_status_offset +
-				 port_num * sizeof(u32));
+				 port_num * port->pmc->iom_port_status_size);
 }
 
 static int sbu_orientation(struct pmc_usb_port *port)
···
 	if (data->cable_mode & TBT_CABLE_LINK_TRAINING)
 		req.mode_data |= PMC_USB_ALTMODE_ACTIVE_LINK;
 
-	if (data->enter_vdo & TBT_ENTER_MODE_ACTIVE_CABLE)
-		req.mode_data |= PMC_USB_ALTMODE_ACTIVE_CABLE;
+	if (acpi_dev_hid_uid_match(port->pmc->iom_adev, "INTC1072", NULL) ||
+	    acpi_dev_hid_uid_match(port->pmc->iom_adev, "INTC1079", NULL)) {
+		if ((data->enter_vdo & TBT_ENTER_MODE_ACTIVE_CABLE) ||
+		    (data->cable_mode & TBT_CABLE_RETIMER))
+			req.mode_data |= PMC_USB_ALTMODE_RETIMER_CABLE;
+	} else {
+		if (data->enter_vdo & TBT_ENTER_MODE_ACTIVE_CABLE)
+			req.mode_data |= PMC_USB_ALTMODE_ACTIVE_CABLE;
+
+		if (data->cable_mode & TBT_CABLE_RETIMER)
+			req.mode_data |= PMC_USB_ALTMODE_RETIMER_CABLE;
+	}
 
 	req.mode_data |= PMC_USB_ALTMODE_CABLE_SPD(cable_speed);
 
···
 	case EUDO_CABLE_TYPE_OPTICAL:
 		req.mode_data |= PMC_USB_ALTMODE_CABLE_TYPE;
 		fallthrough;
+	case EUDO_CABLE_TYPE_RE_TIMER:
+		if (!acpi_dev_hid_uid_match(port->pmc->iom_adev, "INTC1072", NULL) ||
+		    !acpi_dev_hid_uid_match(port->pmc->iom_adev, "INTC1079", NULL))
+			req.mode_data |= PMC_USB_ALTMODE_RETIMER_CABLE;
+		fallthrough;
 	default:
-		req.mode_data |= PMC_USB_ALTMODE_ACTIVE_CABLE;
+		if (acpi_dev_hid_uid_match(port->pmc->iom_adev, "INTC1072", NULL) ||
+		    acpi_dev_hid_uid_match(port->pmc->iom_adev, "INTC1079", NULL))
+			req.mode_data |= PMC_USB_ALTMODE_RETIMER_CABLE;
+		else
+			req.mode_data |= PMC_USB_ALTMODE_ACTIVE_CABLE;
 
 		/* Configure data rate to rounded in the case of Active TBT3
 		 * and USB4 cables.
···
 /* IOM ACPI IDs and IOM_PORT_STATUS_OFFSET */
 static const struct acpi_device_id iom_acpi_ids[] = {
 	/* TigerLake */
-	{ "INTC1072", 0x560, },
+	{ "INTC1072", IOM_PORT_STATUS_REGS(0x560, IOM_PORT_STATUS_REGS_SZ_4) },
 
 	/* AlderLake */
-	{ "INTC1079", 0x160, },
+	{ "INTC1079", IOM_PORT_STATUS_REGS(0x160, IOM_PORT_STATUS_REGS_SZ_4) },
 
 	/* Meteor Lake */
-	{ "INTC107A", 0x160, },
+	{ "INTC107A", IOM_PORT_STATUS_REGS(0x160, IOM_PORT_STATUS_REGS_SZ_4) },
+
+	/* Lunar Lake */
+	{ "INTC10EA", IOM_PORT_STATUS_REGS(0x150, IOM_PORT_STATUS_REGS_SZ_8) },
 	{}
 };
 
···
 	if (!adev)
 		return -ENODEV;
 
-	pmc->iom_port_status_offset = (u32)dev_id->driver_data;
+	pmc->iom_port_status_offset = IOM_PORT_STATUS_REGS_OFFSET(dev_id->driver_data);
+	pmc->iom_port_status_size = IOM_PORT_STATUS_REGS_SIZE(dev_id->driver_data);
 
 	INIT_LIST_HEAD(&resource_list);
 	ret = acpi_dev_get_memory_resources(adev, &resource_list);

drivers/usb/typec/mux/nb7vpq904m.c

···
 		.name = "nb7vpq904m",
 		.of_match_table = nb7vpq904m_of_table,
 	},
-	.probe_new	= nb7vpq904m_probe,
+	.probe		= nb7vpq904m_probe,
 	.remove		= nb7vpq904m_remove,
 	.id_table	= nb7vpq904m_table,
 };

drivers/usb/typec/tcpm/Kconfig

···
 config TYPEC_QCOM_PMIC
 	tristate "Qualcomm PMIC USB Type-C Port Controller Manager driver"
 	depends on ARCH_QCOM || COMPILE_TEST
+	depends on DRM || DRM=n
 	help
 	  A Type-C port and Power Delivery driver which aggregates two
 	  discrete pieces of silicon in the PM8150b PMIC block: the

drivers/usb/typec/tcpm/fusb302.c

···
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/proc_fs.h>
 #include <linux/regulator/consumer.h>

drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c

···
 #include <linux/kernel.h>
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/of_graph.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
···
 #include <linux/usb/role.h>
 #include <linux/usb/tcpm.h>
 #include <linux/usb/typec_mux.h>
+
+#include <drm/drm_bridge.h>
+
 #include "qcom_pmic_typec_pdphy.h"
 #include "qcom_pmic_typec_port.h"
 
···
 	struct pmic_typec_port	*pmic_typec_port;
 	bool			vbus_enabled;
 	struct mutex		lock;		/* VBUS state serialization */
+	struct drm_bridge	bridge;
 };
 
 #define tcpc_to_tcpm(_tcpc_) container_of(_tcpc_, struct pmic_typec, tcpc)
···
 	return 0;
 }
 
+#if IS_ENABLED(CONFIG_DRM)
+static int qcom_pmic_typec_attach(struct drm_bridge *bridge,
+				     enum drm_bridge_attach_flags flags)
+{
+	return flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR ? 0 : -EINVAL;
+}
+
+static const struct drm_bridge_funcs qcom_pmic_typec_bridge_funcs = {
+	.attach = qcom_pmic_typec_attach,
+};
+
+static int qcom_pmic_typec_init_drm(struct pmic_typec *tcpm)
+{
+	tcpm->bridge.funcs = &qcom_pmic_typec_bridge_funcs;
+#ifdef CONFIG_OF
+	tcpm->bridge.of_node = of_get_child_by_name(tcpm->dev->of_node, "connector");
+#endif
+	tcpm->bridge.ops = DRM_BRIDGE_OP_HPD;
+	tcpm->bridge.type = DRM_MODE_CONNECTOR_DisplayPort;
+
+	return devm_drm_bridge_add(tcpm->dev, &tcpm->bridge);
+}
+#else
+static int qcom_pmic_typec_init_drm(struct pmic_typec *tcpm)
+{
+	return 0;
+}
+#endif
+
 static int qcom_pmic_typec_probe(struct platform_device *pdev)
 {
 	struct pmic_typec *tcpm;
···
 
 	mutex_init(&tcpm->lock);
 	platform_set_drvdata(pdev, tcpm);
+
+	ret = qcom_pmic_typec_init_drm(tcpm);
+	if (ret)
+		return ret;
 
 	tcpm->tcpc.fwnode = device_get_named_child_node(tcpm->dev, "connector");
 	if (!tcpm->tcpc.fwnode)

drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c

···
 #include <linux/kernel.h>
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
-#include <linux/of_irq.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>

drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c

···
 #include <linux/kernel.h>
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
···
 		if (ret)
 			goto done;
 		switch (val & DETECTED_SRC_TYPE_MASK) {
+		case AUDIO_ACCESS_RA_RA:
+			val = TYPEC_CC_RA;
+			*cc1 = TYPEC_CC_RA;
+			*cc2 = TYPEC_CC_RA;
+			break;
 		case SRC_RD_OPEN:
 			val = TYPEC_CC_RD;
 			break;

drivers/usb/typec/tcpm/tcpci.c

···
 	if (time_after(jiffies, timeout))
 		return -ETIMEDOUT;
 
+	ret = tcpci_write16(tcpci, TCPC_FAULT_STATUS, TCPC_FAULT_STATUS_ALL_REG_RST_TO_DEFAULT);
+	if (ret < 0)
+		return ret;
+
 	/* Handle vendor init */
 	if (tcpci->data->init) {
 		ret = tcpci->data->init(tcpci, tcpci->data);

drivers/usb/typec/tcpm/tcpci_mt6370.c

···
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
-		return dev_err_probe(dev, irq, "Failed to get irq\n");
+		return irq;
 
 	/* Assign TCPCI feature and ops */
 	priv->tcpci_data.auto_discharge_disconnect = 1;

drivers/usb/typec/tcpm/tcpm.c

···
 			}
 			break;
 		case ADEV_ATTENTION:
-			typec_altmode_attention(adev, p[1]);
+			if (typec_altmode_attention(adev, p[1]))
+				tcpm_log(port, "typec_altmode_attention no port partner altmode");
 			break;
 		}
 	}
···
 			port->sink_cap_done = true;
 			tcpm_set_state(port, ready_state(port), 0);
 			break;
+		/*
+		 * Some port partners do not support GET_STATUS, avoid soft reset the link to
+		 * prevent redundant power re-negotiation
+		 */
+		case GET_STATUS_SEND:
+			tcpm_set_state(port, ready_state(port), 0);
+			break;
 		case SRC_READY:
 		case SNK_READY:
 			if (port->vdm_state > VDM_STATE_READY) {
···
 	return ret;
 }
 
-#define min_pps_apdo_current(x, y)	\
-	min(pdo_pps_apdo_max_current(x), pdo_pps_apdo_max_current(y))
-
 static unsigned int tcpm_pd_select_pps_apdo(struct tcpm_port *port)
 {
-	unsigned int i, j, max_mw = 0, max_mv = 0;
-	unsigned int min_src_mv, max_src_mv, src_ma, src_mw;
-	unsigned int min_snk_mv, max_snk_mv;
-	unsigned int max_op_mv;
-	u32 pdo, src, snk;
-	unsigned int src_pdo = 0, snk_pdo = 0;
+	unsigned int i, src_ma, max_temp_mw = 0, max_op_ma, op_mw;
+	unsigned int src_pdo = 0;
+	u32 pdo, src;
 
-	/*
-	 * Select the source PPS APDO providing the most power while staying
-	 * within the board's limits. We skip the first PDO as this is always
-	 * 5V 3A.
-	 */
 	for (i = 1; i < port->nr_source_caps; ++i) {
 		pdo = port->source_caps[i];
 
···
 				continue;
 			}
 
-			min_src_mv = pdo_pps_apdo_min_voltage(pdo);
-			max_src_mv = pdo_pps_apdo_max_voltage(pdo);
+			if (port->pps_data.req_out_volt > pdo_pps_apdo_max_voltage(pdo) ||
+			    port->pps_data.req_out_volt < pdo_pps_apdo_min_voltage(pdo))
+				continue;
+
 			src_ma = pdo_pps_apdo_max_current(pdo);
-			src_mw = (src_ma * max_src_mv) / 1000;
-
-			/*
-			 * Now search through the sink PDOs to find a matching
-			 * PPS APDO. Again skip the first sink PDO as this will
-			 * always be 5V 3A.
-			 */
-			for (j = 1; j < port->nr_snk_pdo; j++) {
-				pdo = port->snk_pdo[j];
-
-				switch (pdo_type(pdo)) {
-				case PDO_TYPE_APDO:
-					if (pdo_apdo_type(pdo) != APDO_TYPE_PPS) {
-						tcpm_log(port,
-							 "Not PPS APDO (sink), ignoring");
-						continue;
-					}
-
-					min_snk_mv =
-						pdo_pps_apdo_min_voltage(pdo);
-					max_snk_mv =
-						pdo_pps_apdo_max_voltage(pdo);
-					break;
-				default:
-					tcpm_log(port,
-						 "Not APDO type (sink), ignoring");
-					continue;
-				}
-
-				if (min_src_mv <= max_snk_mv &&
-				    max_src_mv >= min_snk_mv) {
-					max_op_mv = min(max_src_mv, max_snk_mv);
-					src_mw = (max_op_mv * src_ma) / 1000;
-					/* Prefer higher voltages if available */
-					if ((src_mw == max_mw &&
-					     max_op_mv > max_mv) ||
-					    src_mw > max_mw) {
-						src_pdo = i;
-						snk_pdo = j;
-						max_mw = src_mw;
-						max_mv = max_op_mv;
-					}
-				}
+			max_op_ma = min(src_ma, port->pps_data.req_op_curr);
+			op_mw = max_op_ma * port->pps_data.req_out_volt / 1000;
+			if (op_mw > max_temp_mw) {
+				src_pdo = i;
+				max_temp_mw = op_mw;
 			}
-
 			break;
 		default:
 			tcpm_log(port, "Not APDO type (source), ignoring");
···
 
 	if (src_pdo) {
 		src = port->source_caps[src_pdo];
-		snk = port->snk_pdo[snk_pdo];
 
-		port->pps_data.req_min_volt = max(pdo_pps_apdo_min_voltage(src),
-						  pdo_pps_apdo_min_voltage(snk));
-		port->pps_data.req_max_volt = min(pdo_pps_apdo_max_voltage(src),
-						  pdo_pps_apdo_max_voltage(snk));
-		port->pps_data.req_max_curr = min_pps_apdo_current(src, snk);
-		port->pps_data.req_out_volt = min(port->pps_data.req_max_volt,
-						  max(port->pps_data.req_min_volt,
-						      port->pps_data.req_out_volt));
+		port->pps_data.req_min_volt = pdo_pps_apdo_min_voltage(src);
+		port->pps_data.req_max_volt = pdo_pps_apdo_max_voltage(src);
+		port->pps_data.req_max_curr = pdo_pps_apdo_max_current(src);
 		port->pps_data.req_op_curr = min(port->pps_data.req_max_curr,
 						 port->pps_data.req_op_curr);
 	}
···
 static int tcpm_pd_build_pps_request(struct tcpm_port *port, u32 *rdo)
 {
 	unsigned int out_mv, op_ma, op_mw, max_mv, max_ma, flags;
-	enum pd_pdo_type type;
 	unsigned int src_pdo_index;
-	u32 pdo;
 
 	src_pdo_index = tcpm_pd_select_pps_apdo(port);
 	if (!src_pdo_index)
 		return -EOPNOTSUPP;
 
-	pdo = port->source_caps[src_pdo_index];
-	type = pdo_type(pdo);
-
-	switch (type) {
-	case PDO_TYPE_APDO:
-		if (pdo_apdo_type(pdo) != APDO_TYPE_PPS) {
-			tcpm_log(port, "Invalid APDO selected!");
-			return -EINVAL;
-		}
-		max_mv = port->pps_data.req_max_volt;
-		max_ma = port->pps_data.req_max_curr;
-		out_mv = port->pps_data.req_out_volt;
-		op_ma = port->pps_data.req_op_curr;
-		break;
-	default:
-		tcpm_log(port, "Invalid PDO selected!");
-		return -EINVAL;
-	}
+	max_mv = port->pps_data.req_max_volt;
+	max_ma = port->pps_data.req_max_curr;
+	out_mv = port->pps_data.req_out_volt;
+	op_ma = port->pps_data.req_op_curr;
 
 	flags = RDO_USB_COMM | RDO_NO_SUSPEND;
 
···
 	if (tcpm_port_is_disconnected(port))
 		port->hard_reset_count = 0;
 
+	port->try_src_count = 0;
+	port->try_snk_count = 0;
+
 	if (!port->attached)
 		return;
 
···
 	case TYPEC_PWR_MODE_PD:
 	default:
 		return TYPEC_CC_RP_3_0;
+	}
+}
+
+static void tcpm_set_initial_svdm_version(struct tcpm_port *port)
+{
+	switch (port->negotiated_rev) {
+	case PD_REV30:
+		break;
+	/*
+	 * 6.4.4.2.3 Structured VDM Version
+	 * 2.0 states "At this time, there is only one version (1.0) defined.
+	 * This field Shall be set to zero to indicate Version 1.0."
+	 * 3.0 states "This field Shall be set to 01b to indicate Version 2.0."
+	 * To ensure that we follow the Power Delivery revision we are currently
+	 * operating on, downgrade the SVDM version to the highest one supported
+	 * by the Power Delivery revision.
+	 */
+	case PD_REV20:
+		typec_partner_set_svdm_version(port->partner, SVDM_VER_1_0);
+		break;
+	default:
+		typec_partner_set_svdm_version(port->partner, SVDM_VER_1_0);
+		break;
 	}
 }
 
···
 		 * For now, this driver only supports SOP for DISCOVER_IDENTITY, thus using
 		 * port->explicit_contract to decide whether to send the command.
 		 */
-		if (port->explicit_contract)
+		if (port->explicit_contract) {
+			tcpm_set_initial_svdm_version(port);
 			mod_send_discover_delayed_work(port, 0);
-		else
+		} else {
 			port->send_discover = false;
+		}
 
 		/*
 		 * 6.3.5
···
 			if (port->slow_charger_loop && (current_lim > PD_P_SNK_STDBY_MW / 5))
 				current_lim = PD_P_SNK_STDBY_MW / 5;
 			tcpm_set_current_limit(port, current_lim, 5000);
-			tcpm_set_charge(port, true);
+			/* Not sink vbus if operational current is 0mA */
+			tcpm_set_charge(port, !!pdo_max_current(port->snk_pdo[0]));
+
 			if (!port->pd_supported)
 				tcpm_set_state(port, SNK_READY, 0);
 			else
···
 		 * For now, this driver only supports SOP for DISCOVER_IDENTITY, thus using
 		 * port->explicit_contract.
 		 */
-		if (port->explicit_contract)
+		if (port->explicit_contract) {
+			tcpm_set_initial_svdm_version(port);
 			mod_send_discover_delayed_work(port, 0);
-		else
+		} else {
 			port->send_discover = false;
+		}
 
 		power_supply_changed(port->psy);
 		break;
···
 			tcpm_set_current_limit(port,
 					       tcpm_get_current_limit(port),
 					       5000);
-			tcpm_set_charge(port, true);
+			/* Not sink vbus if operational current is 0mA */
+			tcpm_set_charge(port, !!pdo_max_current(port->snk_pdo[0]));
 		}
 		if (port->ams == HARD_RESET)
 			tcpm_ams_finish(port);
···
 		goto port_unlock;
 	}
 
-	if (req_out_volt < port->pps_data.min_volt ||
-	    req_out_volt > port->pps_data.max_volt) {
-		ret = -EINVAL;
-		goto port_unlock;
-	}
-
 	target_mw = (port->current_limit * req_out_volt) / 1000;
 	if (target_mw < port->operating_snk_mw) {
 		ret = -EINVAL;
···
 		ret = tcpm_psy_set_online(port, val);
 		break;
 	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
-		if (val->intval < port->pps_data.min_volt * 1000 ||
-		    val->intval > port->pps_data.max_volt * 1000)
-			ret = -EINVAL;
-		else
-			ret = tcpm_pps_set_out_volt(port, val->intval / 1000);
+		ret = tcpm_pps_set_out_volt(port, val->intval / 1000);
 		break;
 	case POWER_SUPPLY_PROP_CURRENT_NOW:
 		if (val->intval > port->pps_data.max_curr * 1000)

drivers/usb/typec/ucsi/Kconfig

···
 	tristate "USB Type-C Connector System Software Interface driver"
 	depends on !CPU_BIG_ENDIAN
 	depends on USB_ROLE_SWITCH || !USB_ROLE_SWITCH
+	select USB_COMMON if DEBUG_FS
 	help
 	  USB Type-C Connector System Software Interface (UCSI) is a
 	  specification for an interface that allows the operating system to

drivers/usb/typec/ucsi/Makefile

···
 
 typec_ucsi-y				:= ucsi.o
 
+typec_ucsi-$(CONFIG_DEBUG_FS)		+= debugfs.o
+
 typec_ucsi-$(CONFIG_TRACING)		+= trace.o
 
 ifneq ($(CONFIG_POWER_SUPPLY),)

drivers/usb/typec/ucsi/debugfs.c

···
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * UCSI debugfs interface
+ *
+ * Copyright (C) 2023 Intel Corporation
+ *
+ * Authors: Rajaram Regupathy <[e-mail]>
+ *	    Gopal Saranya <[e-mail]>
+ */
+#include <linux/debugfs.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/usb.h>
+
+#include <asm/errno.h>
+
+#include "ucsi.h"
+
+static struct dentry *ucsi_debugfs_root;
+
+static int ucsi_cmd(void *data, u64 val)
+{
+	struct ucsi *ucsi = data;
+	int ret;
+
+	memset(&ucsi->debugfs->response, 0, sizeof(ucsi->debugfs->response));
+	ucsi->debugfs->status = 0;
+
+	switch (UCSI_COMMAND(val)) {
+	case UCSI_SET_UOM:
+	case UCSI_SET_UOR:
+	case UCSI_SET_PDR:
+	case UCSI_CONNECTOR_RESET:
+		ret = ucsi_send_command(ucsi, val, NULL, 0);
+		break;
+	case UCSI_GET_CAPABILITY:
+	case UCSI_GET_CONNECTOR_CAPABILITY:
+	case UCSI_GET_ALTERNATE_MODES:
+	case UCSI_GET_CURRENT_CAM:
+	case UCSI_GET_PDOS:
+	case UCSI_GET_CABLE_PROPERTY:
+	case UCSI_GET_CONNECTOR_STATUS:
+		ret = ucsi_send_command(ucsi, val,
+					&ucsi->debugfs->response,
+					sizeof(ucsi->debugfs->response));
+		break;
+	default:
+		ret = -EOPNOTSUPP;
+	}
+
+	if (ret < 0) {
+		ucsi->debugfs->status = ret;
+		return ret;
+	}
+
+	return 0;
+}
+DEFINE_DEBUGFS_ATTRIBUTE(ucsi_cmd_fops, NULL, ucsi_cmd, "0x%llx\n");
+
+static int ucsi_resp_show(struct seq_file *s, void *not_used)
+{
+	struct ucsi *ucsi = s->private;
+
+	if (ucsi->debugfs->status)
+		return ucsi->debugfs->status;
+
+	seq_printf(s, "0x%016llx%016llx\n", ucsi->debugfs->response.high,
+		   ucsi->debugfs->response.low);
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(ucsi_resp);
+
+void ucsi_debugfs_register(struct ucsi *ucsi)
+{
+	ucsi->debugfs = kzalloc(sizeof(*ucsi->debugfs), GFP_KERNEL);
+	if (!ucsi->debugfs)
+		return;
+
+	ucsi->debugfs->dentry = debugfs_create_dir(dev_name(ucsi->dev), ucsi_debugfs_root);
+	debugfs_create_file("command", 0200, ucsi->debugfs->dentry, ucsi, &ucsi_cmd_fops);
+	debugfs_create_file("response", 0400, ucsi->debugfs->dentry, ucsi, &ucsi_resp_fops);
+}
+
+void ucsi_debugfs_unregister(struct ucsi *ucsi)
+{
+	debugfs_remove_recursive(ucsi->debugfs->dentry);
+	kfree(ucsi->debugfs);
+}
+
+void ucsi_debugfs_init(void)
+{
+	ucsi_debugfs_root = debugfs_create_dir("ucsi", usb_debug_root);
+}
+
+void ucsi_debugfs_exit(void)
+{
+	debugfs_remove(ucsi_debugfs_root);
+}

drivers/usb/typec/ucsi/ucsi.c

···
  */
 void ucsi_destroy(struct ucsi *ucsi)
 {
+	ucsi_debugfs_unregister(ucsi);
 	kfree(ucsi);
 }
 EXPORT_SYMBOL_GPL(ucsi_destroy);
···
 
 	queue_delayed_work(system_long_wq, &ucsi->work, 0);
 
+	ucsi_debugfs_register(ucsi);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(ucsi_register);
···
 	kfree(ucsi->connector);
 }
 EXPORT_SYMBOL_GPL(ucsi_unregister);
+
+static int __init ucsi_module_init(void)
+{
+	ucsi_debugfs_init();
+	return 0;
+}
+module_init(ucsi_module_init);
+
+static void __exit ucsi_module_exit(void)
+{
+	ucsi_debugfs_exit();
+}
+module_exit(ucsi_module_exit);
 
 MODULE_AUTHOR("Heikki Krogerus <[e-mail]>");
 MODULE_LICENSE("GPL v2");

drivers/usb/typec/ucsi/ucsi.h

···
 
 struct ucsi;
 struct ucsi_altmode;
+struct dentry;
 
 /* UCSI offsets (Bytes) */
 #define UCSI_VERSION			0
···
 
 /* -------------------------------------------------------------------------- */
 
+struct ucsi_debugfs_entry {
+	u64 command;
+	struct ucsi_data {
+		u64 low;
+		u64 high;
+	} response;
+	u32 status;
+	struct dentry *dentry;
+};
+
 struct ucsi {
 	u16 version;
 	struct device *dev;
···
 
 	struct ucsi_capability cap;
 	struct ucsi_connector *connector;
+	struct ucsi_debugfs_entry *debugfs;
 
 	struct work_struct resume_work;
 	struct delayed_work work;
···
 static inline void
 ucsi_displayport_remove_partner(struct typec_altmode *adev) { }
 #endif /* CONFIG_TYPEC_DP_ALTMODE */
+
+#ifdef CONFIG_DEBUG_FS
+void ucsi_debugfs_init(void);
+void ucsi_debugfs_exit(void);
+void ucsi_debugfs_register(struct ucsi *ucsi);
+void ucsi_debugfs_unregister(struct ucsi *ucsi);
+#else
+static inline void ucsi_debugfs_init(void) { }
+static inline void ucsi_debugfs_exit(void) { }
+static inline void ucsi_debugfs_register(struct ucsi *ucsi) { }
+static inline void ucsi_debugfs_unregister(struct ucsi *ucsi) { }
+#endif /* CONFIG_DEBUG_FS */
 
 /*
  * NVIDIA VirtualLink (svid 0x955) has two altmode. VirtualLink

drivers/usb/typec/ucsi/ucsi_glink.c

···
  */
 #include <linux/auxiliary_bus.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
 #include <linux/mutex.h>
 #include <linux/property.h>
 #include <linux/soc/qcom/pdr.h>

drivers/usb/usbip/vudc_dev.c

···
 
 struct vudc_device *alloc_vudc_device(int devid)
 {
-	struct vudc_device *udc_dev = NULL;
+	struct vudc_device *udc_dev;
 
 	udc_dev = kzalloc(sizeof(*udc_dev), GFP_KERNEL);
 	if (!udc_dev)
-		goto out;
+		return NULL;
 
 	INIT_LIST_HEAD(&udc_dev->dev_entry);
 
···
 		udc_dev = NULL;
 	}
 
-out:
 	return udc_dev;
 }
 

include/linux/usb.h

···
 
 struct usb_device;
 struct usb_driver;
-struct wusb_dev;
 
 /*-------------------------------------------------------------------------*/
 
···
 struct usb_host_bos {
 	struct usb_bos_descriptor	*desc;
 
-	/* wireless cap descriptor is handled by wusb */
 	struct usb_ext_cap_descriptor	*ext_cap;
 	struct usb_ss_cap_descriptor	*ss_cap;
 	struct usb_ssp_cap_descriptor	*ssp_cap;
···
  *	WUSB devices are not, until we authorize them from user space.
  *	FIXME -- complete doc
  * @authenticated: Crypto authentication passed
- * @wusb: device is Wireless USB
  * @lpm_capable: device supports LPM
  * @lpm_devinit_allow: Allow USB3 device initiated LPM, exit latency is in range
  * @usb2_hw_lpm_capable: device can perform USB2 hardware LPM
···
  * @do_remote_wakeup:  remote wakeup should be enabled
  * @reset_resume: needs reset instead of resume
  * @port_is_suspended: the upstream port is suspended (L2 or U3)
- * @wusb_dev: if this is a Wireless USB device, link to the WUSB
- *	specific data for the device.
  * @slot_id: Slot ID assigned by xHCI
  * @removable: Device can be physically removed from this port
  * @l1_params: best effor service latency for USB2 L1 LPM state, and L1 timeout.
···
 	unsigned have_langid:1;
 	unsigned authorized:1;
 	unsigned authenticated:1;
-	unsigned wusb:1;
 	unsigned lpm_capable:1;
 	unsigned lpm_devinit_allow:1;
 	unsigned usb2_hw_lpm_capable:1;
···
 	unsigned reset_resume:1;
 	unsigned port_is_suspended:1;
 
-	struct wusb_dev *wusb_dev;
 	int slot_id;
 	struct usb2_lpm_parameters l1_params;
 	struct usb3_lpm_parameters u1_params;
···
  * encoding of the endpoint interval, and express polling intervals in
  * microframes (eight per millisecond) rather than in frames (one per
  * millisecond).
- *
- * Wireless USB also uses the logarithmic encoding, but specifies it in units of
- * 128us instead of 125us.  For Wireless USB devices, the interval is passed
- * through to the host controller, rather than being translated into microframe
- * units.
  */
 static inline void usb_fill_int_urb(struct urb *urb,
 				    struct usb_device *dev,

include/linux/usb/ch9.h

···
  * This file holds USB constants and structures that are needed for
  * USB device APIs.  These are used by the USB device model, which is
  * defined in chapter 9 of the USB 2.0 specification and in the
- * Wireless USB 1.0 (spread around).  Linux has several APIs in C that
+ * Wireless USB 1.0 spec (now defunct).  Linux has several APIs in C that
  * need these:
  *
  * - the host side Linux-USB kernel driver API;
···
  * USB 2.0 adds an additional "On The Go" (OTG) mode, which lets systems
  * act either as a USB host or as a USB device.  That means the host and
  * device side APIs benefit from working well together.
- *
- * There's also "Wireless USB", using low power short range radios for
- * peripheral interconnection but otherwise building on the USB framework.
  *
  * Note all descriptors are declared '__attribute__((packed))' so that:
  *

include/linux/usb/chipidea.h

···
 #define CI_HDRC_IMX_IS_HSIC		BIT(14)
 #define CI_HDRC_PMQOS			BIT(15)
 #define CI_HDRC_PHY_VBUS_CONTROL	BIT(16)
+#define CI_HDRC_HAS_PORTSC_PEC_MISSED	BIT(17)
 	enum usb_dr_mode	dr_mode;
 #define CI_HDRC_CONTROLLER_RESET_EVENT		0
 #define CI_HDRC_CONTROLLER_STOPPED_EVENT	1

include/linux/usb/composite.h

···
  *
  * One of these devices is allocated and initialized before the
  * associated device driver's bind() is called.
- *
- * OPEN ISSUE:  it appears that some WUSB devices will need to be
- * built by combining a normal (wired) gadget with a wireless one.
- * This revision of the gadget framework should probably try to make
- * sure doing that won't hurt too much.
- *
- * One notion for how to handle Wireless USB devices involves:
- *
- * (a) a second gadget here, discovery mechanism TBD, but likely
- *     needing separate "register/unregister WUSB gadget" calls;
- * (b) updates to usb_gadget to include flags "is it wireless",
- *     "is it wired", plus (presumably in a wrapper structure)
- *     bandgroup and PHY info;
- * (c) presumably a wireless_ep wrapping a usb_ep, and reporting
- *     wireless-specific parameters like maxburst and maxsequence;
- * (d) configurations that are specific to wireless links;
- * (e) function drivers that understand wireless configs and will
- *     support wireless for (additional) function instances;
- * (f) a function to support association setup (like CBAF), not
- *     necessarily requiring a wireless adapter;
- * (g) composite device setup that can create one or more wireless
- *     configs, including appropriate association setup support;
- * (h) more, TBD.
  */
 struct usb_composite_dev {
 	struct usb_gadget		*gadget;

include/linux/usb/hcd.h

···
 	/* The next flag is a stopgap, to be removed when all the HCDs
 	 * support the new root-hub polling mechanism. */
 	unsigned		uses_new_polling:1;
-	unsigned		wireless:1;	/* Wireless USB HCD */
 	unsigned		has_tt:1;	/* Integrated TT in root hub */
 	unsigned		amd_resume_bug:1; /* AMD remote wakeup quirk */
 	unsigned		can_do_streams:1; /* HC supports streams */
···
 #define	HCD_SHARED	0x0004		/* Two (or more) usb_hcds share HW */
 #define	HCD_USB11	0x0010		/* USB 1.1 */
 #define	HCD_USB2	0x0020		/* USB 2.0 */
-#define	HCD_USB25	0x0030		/* Wireless USB 1.0 (USB 2.5)*/
 #define	HCD_USB3	0x0040		/* USB 3.0 */
 #define	HCD_USB31	0x0050		/* USB 3.1 */
 #define	HCD_USB32	0x0060		/* USB 3.2 */

include/linux/usb/phy.h

···
 	 */
 	int	(*set_wakeup)(struct usb_phy *x, bool enabled);
 
+	/* notify phy port status change */
+	int	(*notify_port_status)(struct usb_phy *x, int port,
+				      u16 portstatus, u16 portchange);
+
 	/* notify phy connect status change */
 	int	(*notify_connect)(struct usb_phy *x,
 			enum usb_device_speed speed);
···
 {
 	if (x && x->set_wakeup)
 		return x->set_wakeup(x, enabled);
+	else
+		return 0;
+}
+
+static inline int
+usb_phy_notify_port_status(struct usb_phy *x, int port, u16 portstatus, u16 portchange)
+{
+	if (x && x->notify_port_status)
+		return x->notify_port_status(x, port, portstatus, portchange);
 	else
 		return 0;
 }

include/linux/usb/tcpci.h

···
 #define TCPC_POWER_STATUS_SINKING_VBUS	BIT(0)
 
 #define TCPC_FAULT_STATUS		0x1f
+#define TCPC_FAULT_STATUS_ALL_REG_RST_TO_DEFAULT BIT(7)
 
 #define TCPC_ALERT_EXTENDED		0x21
 

include/linux/usb/typec_altmode.h

···
 
 int typec_altmode_enter(struct typec_altmode *altmode, u32 *vdo);
 int typec_altmode_exit(struct typec_altmode *altmode);
-void typec_altmode_attention(struct typec_altmode *altmode, u32 vdo);
+int typec_altmode_attention(struct typec_altmode *altmode, u32 vdo);
 int typec_altmode_vdm(struct typec_altmode *altmode,
 		      const u32 header, const u32 *vdo, int count);
 int typec_altmode_notify(struct typec_altmode *altmode, unsigned long conf,

include/uapi/linux/usb/ch11.h

···
 /* This is arbitrary.
  * From USB 2.0 spec Table 11-13, offset 7, a hub can
  * have up to 255 ports. The most yet reported is 10.
- *
- * Current Wireless USB host hardware (Intel i1480 for example) allows
- * up to 22 devices to connect. Upcoming hardware might raise that
- * limit. Because the arrays need to add a bit for hub status data, we
+ * Upcoming hardware might raise that limit.
+ * Because the arrays need to add a bit for hub status data, we
  * use 31, so plus one evens out to four bytes.
  */
 #define USB_MAXCHILDREN		31

include/uapi/linux/usb/ch9.h

···
  * This file holds USB constants and structures that are needed for
  * USB device APIs.  These are used by the USB device model, which is
  * defined in chapter 9 of the USB 2.0 specification and in the
- * Wireless USB 1.0 (spread around).  Linux has several APIs in C that
+ * Wireless USB 1.0 spec (now defunct).  Linux has several APIs in C that
  * need these:
  *
  * - the master/host side Linux-USB kernel driver API;
···
  * USB 2.0 adds an additional "On The Go" (OTG) mode, which lets systems
  * act either as a USB master/host or as a USB slave/device.  That means
  * the master and slave side APIs benefit from working well together.
- *
- * There's also "Wireless USB", using low power short range radios for
- * peripheral interconnection but otherwise building on the USB framework.
  *
  * Note all descriptors are declared '__attribute__((packed))' so that:
  *